Best Glaziers in Wellington

Our Trusted Glaziers

We feature businesses that demonstrate strong performance, proven experience, and consistently positive customer feedback. Some of the providers listed may have commercial relationships with us, but all are selected based on quality and reliability.

To begin, reach out to them and speak with them directly — this helps you explain your job, ask questions, and confirm whether they're the right fit.

Quick Summary — The 60-Second Version

If you're skimming, here's what matters:

• Single pane replacement: $130–$800 for standard window glass during business hours, depending on size and glass type
• Emergency callout: Budget $350–$800 all up for a typical emergency — Wellington's hills and wind make after-hours jobs harder to price over the phone
• Aluminium retrofit double glazing: $550–$850 per window into existing frames — the most cost-effective upgrade for most Wellington homes
• Timber retrofit double glazing: $800–$1,200 per window — needed for character villas and bungalows where you want to keep original joinery
• Full house double glazing: $12,960–$37,800 for a standard 3-bedroom home, or $15,000–$35,000 for full joinery replacement
• Verify: Look for WGANZ membership, check that windows are rated for your wind zone (Wellington is Very High to Extra High in most locations), and confirm safety glass markings on every pane
• Biggest factor: whether your house is on a hill — steep sites require scaffolding or specialised access equipment, which can add 20–30 per cent to the job cost

NZ Glazing Standards and Certification — What Actually Matters

Glazing in New Zealand doesn't operate under a single mandatory licensing regime like plumbing (PGDB) or electrical (EWRB). That doesn't mean it's unregulated. Every glass installation must comply with the Building Code and a detailed suite of New Zealand Standards. In Wellington, where wind and earthquake loads drive the design requirements, standards compliance isn't optional — it's the difference between a window that keeps the weather out and one that fails during the first southerly storm.

The key standards that govern glazing work in New Zealand are:

• NZS 4223.1:2008 — Glass selection and glazing. Covers what type of glass goes where, including thickness requirements, wind load calculations, and frame compatibility.
• NZS 4223.2:2016 — Insulating glass units (IGUs). The standard for double- and triple-glazed sealed units, including manufacturing tolerances and durability testing.
• NZS 4223.3:2016 — Human impact safety requirements. Safety glass (toughened or laminated) is required in doors, low windows, wet areas, and anywhere protecting a fall of one metre or more. Every safety glass pane must be permanently marked.
• NZS 4223.4:2008 — Wind, dead, snow, and live actions. Determines the minimum glass thickness for a given wind zone. In Wellington, where most sites fall into Very High (50 m/s) or Extra High (55 m/s), this standard governs whether your windows survive a storm.
• E2/AS1 — External moisture. In Very High and Extra High wind zones (most of Wellington), this requires a sealant bead between the head flashing and the window head flange — not just a gravity lap. Sill trays and jamb flashings become critical when rain is driven horizontally.
• H1/AS1 — Energy efficiency. Sets minimum thermal performance. When replacing windows, the new glazing must have an R-value at least as good as what came out — which means replacing Wellington's ubiquitous single glazing with double glazing in most cases.
• B1/VM1 + NZS 1170.5 — Structural stability and earthquake actions. For multi-storey buildings and curtain wall systems, glazing must accommodate inter-storey seismic movement. Even in residential homes, large window units in Wellington's seismic environment need correctly specified fixings that account for lateral movement.

The Window & Glass Association NZ (WGANZ) is the national trade body, established in 1965. It's voluntary but it's the strongest quality signal you'll find. WGANZ members adhere to a Code of Ethics, maintain professional indemnity insurance, and have their products independently tested. The Association runs the Glass Standard Advisor Network — practitioners who've passed a 100% examination on NZS 4223.3. There's also the New Zealand Certificate in Glazing (Level 4), a formal qualification assessed in real workplace conditions. A glazier who holds either of these credentials has been independently verified against national standards.

Wellington Pricing — What You Can Expect to Pay

Wellington sits about 8 per cent above the national average for glazing work — less than Auckland's 15 per cent premium but more than Christchurch or Hamilton. The city's compact, hilly geography drives costs in two directions. Labour rates are higher because tradies spend more time getting to and from jobs — navigating narrow streets in suburbs like Kelburn, Karori, and Brooklyn adds travel time that gets built into quotes. At the same time, the concentrated urban core and strong public-sector economy mean plenty of competition, which keeps pricing from running away completely.

Here's what common glazing jobs cost in Wellington as of mid-2026. All prices include GST unless noted otherwise.

Price ranges verified from industry cost guides as of August 2026. Final quotes depend on glass type, access requirements, frame condition, wind zone classification, and whether scaffolding is needed for steep sites. GST is included. Get at least three written quotes before committing.

Several factors drive the final price in Wellington specifically. Access is the dominant cost variable — ground-floor sash windows in Newtown or Miramar are straightforward jobs, but a third-storey picture window in a Kelburn hillside home requiring scaffolding or a mobile boom lift is a completely different proposition, potentially adding 20–30 per cent to the labour component.

Glass type matters enormously: standard annealed float glass is cheapest, toughened safety glass costs about 50 per cent more, and laminated glass roughly double. The wind zone classification determines how thick the glass needs to be and therefore how much it costs — an Extra High wind zone window on a south coast property in Island Bay or Owhiro Bay will require thicker, heavier glass than a sheltered Medium-wind-zone window in a central Thorndon terrace.

Most Wellington glaziers quote per job rather than hourly, which is better for you — the glazier carries the overrun risk. For small repairs, expect a minimum charge of $130–$200 covering the first hour plus callout. For larger projects, you'll get a detailed quote breaking down materials, labour, scaffolding (if needed), and subcontractor work for gib stopping and painting.

How to Choose a Glazier — What Actually Matters

With no mandatory licensing, choosing a glazier comes down to checking the right things yourself. Here's what separates a competent professional from someone who's just good at fitting glass into holes.

Check their standards knowledge. Ask them which wind zone your house is in and what that means for glass thickness and fixing requirements. In Wellington, the answer is almost always Very High, or Extra High (NZS 3604), and some coastal and hilltop sites require specific engineering design beyond standard wind zone classifications. A good glazier will also explain when safety glass is required under NZS 4223.3 — within 800 mm of floor level, in doors and side panels, in wet areas, and anywhere protecting a fall of one metre or more.

Look for WGANZ membership. It's the strongest quality signal available. WGANZ members have independently tested products, follow a Code of Ethics, participate in ongoing technical training, and the Association provides dispute resolution if something goes wrong. Search the member directory at wganz.org.nz.

Ask about their experience with Wellington's housing stock. A glazier who mostly does new-build aluminium joinery in Whitby or Churton Park probably isn't the right person to retrofit double glazing into a 1905 Mount Victoria villa with original timber sashes, uneven openings from 120 years of settlement, and heritage overlay restrictions. Wellington has one of the country's largest concentrations of pre-1940s timber character homes, and they each present unique glazing challenges.

Verify safety glass markings. Every pane of safety glass must be permanently marked with the manufacturer's name or trademark, glass type, test standard, and certifier's ID number. No markings mean it hasn't been certified — and if a glazier tells you "it's safety glass, don't worry about the label," walk away.

Check their approach to seismic fixings. In Wellington's earthquake zone, windows need to be mechanically fixed with 10g x 50 mm stainless steel pan-head screws at maximum 300 mm centres into timber, or masonry anchors at the same centres into concrete. Construction adhesives alone are not structural fixings and are not acceptable. A good glazier specifies 316-grade stainless fasteners for coastal suburbs (Island Bay, Seatoun, Miramar, Eastbourne) where salt spray accelerates corrosion.

Red flags to watch for:

• No written quote. A verbal "should be about" figure with no breakdown of materials, labour, and access costs is not a binding contract. Always get the scope, timeline, and price in writing.
• Can't name the relevant wind zone or standard. If they can't say "NZS 4223.3" when you ask about safety glass, or can't identify your wind zone under NZS 3604, they don't know the regulatory framework they're working within.
• Recommends annealed glass where safety glass is required. Dangerous and illegal under the Building Code. No exceptions.
• Quotes a Low or Medium wind zone-rated window for a Wellington site. CodeMark-certified products have scope limitations. A window rated for Low wind zones isn't legal on most Wellington properties, which require a Very High or Extra High rating. Ask to see the product label — it must state the wind zone classification.
• No experience with steep-site access. If your property requires scaffolding or a boom lift and the glazier doesn't mention it in the quote, they're either planning to do the job unsafely, or they haven't thought through the logistics.

What to Expect When You Call a Glazier

Before they arrive. If it's an emergency — a broken window or door — secure the area first. Keep children and pets away from broken glass. If possible, measure the approximate pane size in millimetres and note the glass type — single, double glazed, frosted, tinted, or clear. Photograph any permanent markings in the corner of the glass. For non-emergency work, clear furniture away from the work area and provide a clear path from the front door to the window. If your property is on a steep site, let the glazier know in advance — they may need to plan for different access equipment.

When they arrive. A good glazier will assess the frame condition first. For timber frames — which dominate Wellington's older housing stock — they'll check for rot, particularly at bottom corners and sills. If the timber is soft, they should tell you before starting because replacing glass into a rotting frame is temporary at best. For double-glazed unit replacements, they'll examine the spacer bar to confirm seal failure — fogging between panes means the sealed unit has failed and needs complete replacement. They'll then remove the old glass or beads, fit the new pane, apply fresh sealant, and clean up.

How long common jobs take:

• A standard single-pane replacement in an accessible ground-floor location takes 30–60 minutes
• A fogged double-glazed unit replacement takes 1–2 hours including removal, fitting, and resealing
• Emergency board-up and same-day glass replacement takes 1–3 hours for most Wellington central suburbs
• Retrofit double glazing into timber frames takes 1–2 hours per window — a 10-window job is typically 2–3 days
• Full joinery replacement for a single window takes 3–5 hours including gib repair and exterior sealing
• Jobs on steep sites requiring scaffolding or boom lift access add setup and pack-down time — budget an extra half-day for access logistics on hillside properties

After the job. Confirm the new pane has the required permanent markings. For double-glazed units, check the spacer bar for manufacturer details and date of manufacture. Keep all paperwork — especially for full window replacements — for future property sales. Most window replacements don't require building consent under Schedule 1 of the Building Act (replacing like with like in the same position), but the work must still comply with the Building Code. If the original window failed within 15 years of installation — a durability failure under clause B2 — consent is required. In Wellington's heritage zones, visible changes to street-facing windows may also need resource consent.

Wellington-Specific Risks — What Your Glazier Should Know

Earthquake Zone — The Wellington Fault and Glazing Safety

Wellington sits directly on the Wellington Fault, with GNS Science estimating a 10–15 per cent probability of a major rupture in the next 50 years. For glazing, this means two things. First, window units in multi-storey buildings must be designed to accommodate inter-storey seismic movement — curtain wall framing systems need sufficient clearance between glass panes and frames so the building can move without shattering the glass. Toughened or laminated safety glass is strongly recommended for large ground-floor windows and doors that could become life-safety hazards if they shatter during shaking.

Second, for residential homes — particularly the thousands of pre-1976 timber villas and bungalows that dominate Wellington's inner suburbs — the structural connections between window units and the building frame matter. Homes built before NZS 3604 introduced standardised bracing requirements lack the lateral-force resistance modern homes have.

While window replacement alone doesn't trigger a seismic upgrade requirement, if you're doing a full home re-joinery on an older property, it's worth asking your glazier or builder whether the existing framing around window openings would benefit from additional bracing at the same time. It's much cheaper to do while the windows are out than as a separate project later.

Wind Zones — Wellington Is Not a Moderate-Wind City

Wellington sits in wind region W under NZS 3604, with most of the city classified as Very High (50 m/s ultimate limit state) or Extra High (55 m/s). Hilltop sites — Kelburn, Brooklyn, Khandallah, Mount Victoria — frequently rate Extra High. Coastal and south-facing properties exposed to the full force of southerly storms can push beyond Extra High into Specific Engineering Design (SED) territory, requiring an engineer to calculate wind loads under AS/NZS 1170.2 rather than using the generic tables in NZS 3604.

This matters because windows and doors are classified by wind zone, and a unit rated for High (44 m/s — fine for Auckland) is not compliant on most Wellington properties. In Extra High zones, E2/AS1 requires a sealant bead between the head flashing and the window head flange, plus a minimum cladding cover of 60 mm (versus 35 mm in lower zones).

Head flashings must have a 15-degree slope to shed water, and folded stop-ends at both ends to prevent wind-driven rain being forced around the ends into the wall cavity. These are not optional details — they're the difference between a window that stays dry and one that lets water into your framing every time a southerly hits.

South Coast and Hilltops — Salt Spray and Specific Engineering Design

Homes within 500 metres of the south coast — Owhiro Bay, Island Bay, Houghton Bay, Lyall Bay, Breaker Bay — and on exposed ridge lines face two compounding challenges. Wind speeds on these sites frequently push into SED territory, requiring thicker glass, heavier frames, and more frequent fixings than the standard tables provide.

At the same time, salt-laden air accelerates corrosion on aluminium joinery and steel fasteners. Marine-grade powder coating (AS 3715) and 316-grade stainless fasteners are essential — 304-grade looks identical and costs less but will pit within a few years of salt exposure.

Character Homes — Villa and Bungalow Glazing in a Heritage City

Wellington has one of New Zealand's largest collections of pre-1940s timber character homes. Suburbs like Thorndon, Mount Victoria, Mount Cook, Newtown, Aro Valley, and Northland are dense with villas and bungalows — high ceilings, ornate cornices, bay windows, and single-glazed timber sashes that have been rattling in the wind for a century.

These homes present three simultaneous constraints. The Building Code requires safety glass, energy efficiency, and weathertightness on any replacement. The Wellington District Plan's heritage schedules may restrict visible changes to street-facing windows — if your villa is in a heritage area, check with the council before ordering new joinery. And the practical reality is that 100-year-old timber framing is rarely square, never standard-sized, and often conceals rot behind architraves that have been painted over for decades.

Retrofit double glazing into existing timber frames is usually the preferred approach — it preserves the original joinery, satisfies H1 energy requirements, and costs roughly $800–$1,200 per window versus $1,500–$2,500 for full replacement. But it only works if the frames are solid. A glazier experienced with Wellington character homes will test every frame with a moisture meter before quoting and will be direct about which ones need replacing.

Condensation and Mould — The Double Glazing Dividend

Wellington's combination of cold winters, single-glazed housing stock, and hilly terrain that traps moisture in valleys (Karori, Aro Valley, parts of Hataitai) means condensation and mould are persistent problems. Single-glazed windows routinely run with water on winter mornings, and that moisture migrates into curtains, carpet, and wall linings.

Double glazing reduces heat loss through windows by 40–50 per cent and — equally importantly in Wellington — raises the internal glass surface temperature above the dew point, which eliminates condensation entirely. For Wellington homes, the mould reduction alone often justifies the investment, quite apart from the heating savings of $500–$1,500 per year.

Steep Sites — Access Costs and Structural Complexity

A significant proportion of Wellington homes sit on slopes — suburbs like Kelburn, Brooklyn, Wadestown, Ngaio, and Hataitai were built on hillsides where flat sections simply don't exist. Glazing work on these properties requires scaffolding, mobile boom lifts, or in extreme cases, crane access. This isn't cheap — budget an extra 20–30 per cent on labour for steep-site access.

There's also a structural consideration: homes on slopes experience greater lateral forces during earthquakes, and window openings in below-ground or partially-buried walls have higher moisture exposure. A good Wellington glazier factors these into the quote from the start, rather than "discovering" them halfway through the job.

Questions You Might Have

Can I just replace the glass without replacing the whole window frame?

Yes, in most cases — this is called reglazing or retrofit double glazing. It's significantly cheaper than full joinery replacement, typically $550–$1,200 per window depending on whether your frames are aluminium or timber. The catch is the existing frame must be structurally sound. A good glazier will check for rot in timber frames and corrosion in aluminium frames before quoting. In Wellington's damp climate, timber frame rot around the bottom corners and sills is common — if the timber is soft, a glass-only replacement is a false economy.

Do I need building consent to replace my windows?

Generally no, if you're replacing a comparable window in the same opening under Schedule 1 of the Building Act 2004. Exceptions: if the original window failed within 15 years of installation (a B2 durability failure), if you're enlarging the opening, or if you're in a heritage zone where the Wellington District Plan restricts visible changes. Even when consent isn't required, the work must still comply with the Building Code — correct head flashings with sealant in Very High and Extra High wind zones, safety glass where NZS 4223.3 requires it, and mechanical fixings at the specified centres.

Is retrofit double glazing worth it, or should I just replace the whole window?

For most Wellington homes, retrofit makes financial sense. Aluminium retrofits run $550–$850 per window; timber retrofits $800–$1,200. Full replacement starts at $1,500 per opening and can reach $2,500 or more. A 12-window villa retrofitted costs roughly $10,000–$14,000 versus $18,000–$30,000 for full replacement. The choice turns on frame condition. If your timber frames are solid and well-maintained, retrofit gives you 80–90 per cent of the thermal benefit at roughly half the cost. If the frames are rotting — and in Wellington, after a century of wind-driven rain, many are — full replacement is the only sensible option.

How do I know if my double glazed unit has failed?

Look for fogging or condensation between the two panes — moisture trapped inside the sealed cavity that you can't wipe away. The spacer bar between the panes may show corrosion. A failed IGU has lost its argon gas fill, meaning its thermal performance has dropped significantly. Replacement is the only fix — you can't repair a failed sealed unit. In Wellington, where condensation is already a winter reality, a failed IGU makes the problem worse because the cold inner pane becomes a moisture magnet.

Does my Wellington home need Extra High wind zone windows?

Most Wellington properties require Very High (50 m/s), or Extra High (55 m/s) rated windows under NZS 3604. If your property is on an exposed ridge, south-facing slope, or within a few hundred metres of the coast, Extra High is likely. You can check your property's wind zone on the Wellington City Council online property webmap. If your site exceeds 55 m/s — which some south coast and hilltop sections do — you'll need specific engineering design (SED). A competent glazier will verify the wind zone before ordering any window units, and the product label on the unit itself should state its wind zone rating.

What Matters Most

Glass is a structural element in Wellington in a way that it isn't in most other New Zealand cities. It has to hold the weather out in 100 km/h southerlies. It has to stay together when the ground shakes. It has to keep a century-old villa warm through July without running with condensation. Getting any of those three things wrong isn't just expensive — in this city, getting it wrong can mean water rotting your framing for a decade while you don't notice, or a window shattering into dangerous shards during an earthquake that the rest of the house rides out just fine.

A good Wellington glazier knows which wind zone your property sits in without hesitating. They know to check timber frames for rot before quoting, not after removing the glass. They understand that the 1905 villa in Thorndon with heritage overlay, the 1970s split-level in Khandallah on a 40-degree slope, and the 2020 townhouse in Kilbirnie all need completely different approaches. They put safety glass where NZS 4223.3 requires it, they specify the correct wind zone rating on every unit, and every pane they install carries its permanent compliance markings.

The $130 you spend fixing a single broken pane, or the $15,000 investment in double glazing that cuts your heating bill and stops your windows running with water every winter, is the best money you'll put into a Wellington home. Check for WGANZ membership. Get three written quotes. Look for the markings on the glass. Pay for the job once.