Best Glaziers & Double Glazing Installers in Hamilton
We assessed 15 glaziers & double glazing installers in Hamilton and ranked the top 5 on public rating quality, review volume and how recent the reviews are. The businesses listed below hold 361 Google reviews between them. No business can pay for a place in these rankings. Last updated 19 September 2026. How we rank →
Before you hire
The same businesses fix a broken pane and double glaze a house, so one list covers both. For retrofit double glazing, ask whether your existing frames are sound enough to keep, what glass is quoted (Low-E and an argon fill cost more and insulate better), and whether doors, bathrooms and low windows are priced with safety glass, which carries a permanent NZS 4223.3 mark. Replacing windows in a house of up to two storeys does not usually need a building consent, unless the old ones leaked. There is no glazier licence in New Zealand; Window & Glass Association New Zealand membership is voluntary.
Top 5 Glaziers & Double Glazing Installers in Hamilton
The top 5 glaziers & double glazing installers in Hamilton are #1 Glasswise, #2 Double Glazing United, #3 City Glass Services, #4 Get Glass Solutions, and #5 Glass & Glazing, ranked by Top5 score. Scroll for our take on each, plus what to ask before you hire.
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1
Glasswise
★ 4.9 70 reviews Top5 Score 1525★ 67 4★ 1 1★ 2Glasswise retrofits double glazing into existing timber and aluminium window frames, and can swap windows for sliding doors in the same job, so homeowners avoid coordinating multiple trades. The quoting stage stands out: Paul and Jase regularly suggest changes that reduce cost or improve the outcome before any work begins, and scratched or damaged frames get replaced without dispute.
location_on 1/183 Maui Street, Pukete, Hamilton
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2
Double Glazing United
★ 5.0 44 reviews Top5 Score 1485★ 43 4★ 1Double Glazing United fits retrofit double glazing into existing timber, wooden casement, and aluminium frames, and can also replace bifolds and doors in the same project. Their installation crews work to a finish: one team spotted a window imperfection the homeowner had not noticed and fixed it on the spot, and jobs covering an entire house are routinely completed in a single day, left clean and tidy.
location_on 14 Platt Road, Newstead
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3
City Glass Services Ltd
★ 4.8 41 reviews Top5 Score 1435★ 35 4★ 5 1★ 1City Glass Services covers whole-house double glazing installations, sliding door replacements, and window repairs, with quoting staff who revisit and update pricing across multiple rounds of changes without rushing the decision. Install crews turn up on time, work through to completion in a single visit, and leave sites clean, making them a practical fit for larger projects where coordination matters.
location_on 149 Riverlea Road, Riverlea, Hamilton
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4
Get Glass Solutions
★ 4.7 45 reviews Top5 Score 1435★ 38 4★ 4 3★ 2 1★ 1Get Glass Solutions turns around broken window glass, door panel repairs, and pet door installations often within hours of first contact, making them a practical first call when something breaks unexpectedly. Office staff like Lisa and Renee handle bookings quickly, and technicians like Andrew routinely go further than the core job, reattaching locks or fitting cat flaps in the same visit.
location_on 35a Higgins Road, Frankton, Hamilton
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5
Glass & Glazing Ltd
★ 4.9 34 reviews Top5 Score 1425★ 32 4★ 1 1★ 1Glass & Glazing cuts glass and mirrors to custom sizes, fits window panes, and installs mirrors, often completing straightforward jobs while you wait or within the same day. When a customer brought in incorrectly measured glass a week after ordering, the team recut it within five minutes, no fuss, at no extra hassle to the buyer.
location_on 15 West Street, Frankton, Hamilton
Before you hire a glazier in Hamilton
Drawn from 161 customer reviews collected for this page. The first answer is what it costs.
How much does double glazing or a glass repair cost in New Zealand? expand_more
Retrofit double glazing runs from about $400 to $850 per window in aluminium frames and $800 to $1,200 per window in timber frames. Per square metre, expect around $600 to $800 for a retrofit unit. A whole-house retrofit sits between roughly $12,000 and $25,000, while full window replacement with new frames can reach $25,000 to $80,000 or more, making retrofit around 30 to 60 percent cheaper where the frames are sound. For a single broken pane in an aluminium frame near ground level, budget around $320 plus GST on average, within a range of $200 to $800 plus GST, with timber frames and double-glazed units costing more. Frame type and condition, Low-E coating, argon fill, safety glass, window size and shape, the number of windows, travel distance, and height above ground level all shift the final figure, and scaffolding for upper-floor windows adds cost on top. These are installer-published figures, and no independent New Zealand source publishes glazing prices.
Is double glazing required by law, and does replacing windows need a building consent? expand_more
No law requires an existing home to be double glazed. Building Code clause H1 sets minimum window insulation values only for new housing, starting at R0.37 nationwide from 3 November 2022 and rising to R0.46 or R0.50 in the coldest zones during 2023, and an alteration to an existing house only needs to leave the home no worse than before. The healthy homes standards for rental properties require ceiling and underfloor insulation, not double glazing, and the Warmer Kiwi Homes programme funds insulation and heat pumps but not windows or glazing. Under Schedule 1 of the Building Act 2004, window work in an existing house of up to two storeys is exempt from a building consent, except where the window being replaced failed the code for durability such as by leaking, or where the work affects a specified system, and exempt work must still meet the Building Code. Glass in doors, showers, balustrades, and similar risk areas must be safety glass carrying a permanent NZS 4223.3 compliance mark. There is no glazier licence in New Zealand, but the Window and Glass Association New Zealand is the voluntary industry body and publishes a member search.
Should you retrofit double glazing into your existing frames or replace the whole window? expand_more
Retrofit is the right call when your frames are structurally sound, because the glass is replaced without disturbing the join between the window and the wall, the job is quicker, and the cost is substantially lower. Full replacement suits frames that are rotten, corroded, or draughty, and it is the only way to get thermally broken aluminium, uPVC, or new timber frames, which insulate better than old plain aluminium because the frame itself stops conducting cold inward. Low-E glass, which has a thin metallic coating that reflects heat back into the room, can be fitted in either approach and is worth specifying. Reviewers who went the retrofit route noted that skilled installers left no visible trace of the work, with windows opening and closing better than before, jobs completed in one or two days, and sites left clean, though one case of scratched frames during transit was resolved with replacements before handover. Double glazing keeps the inner glass surface warmer so condensation is less likely to form, but it does not remove moisture from the air, so ventilation still matters, and a plain aluminium frame can still run with condensation even after a retrofit.
What are the warning signs of a glazier or double glazing company to avoid? expand_more
- –A company that installs a mismatched or wrong unit and then disputes responsibility when you call it out is a clear red flag, as is an owner who turns up at your property unannounced to handle a complaint.
- –Poor or no communication after a deposit is paid, such as a week passing without a return call after a voicemail, signals that responsiveness will only get worse once money has changed hands.
- –An installer who leaves a crack in your glass and then presents a $500 quote to fix the damage they caused, on top of the original fee, is exploiting customers rather than standing behind their work.
- –Sales pressure tactics, upselling on the spot to a more expensive product than you asked for, and fitting a unit that was flagged as too small before installation are signs of poor listening and poor practice.
- –Rough or careless workmanship, including uneven cuts, glass shards left in the garden, and an installer who acknowledges the job looks bad after the fact, means you may need a second tradesperson to fix the first one's work.
- –A company that deflects responsibility through fine print such as an undisclosed no-responsibility clause recited just before starting work, without prior explanation, is protecting itself at your expense.
What should you ask before hiring a glazier or double glazing installer? expand_more
- –Ask whether your existing frames are sound enough to retrofit or whether they need replacing, and get the installer to explain what they checked to reach that conclusion.
- –Confirm exactly what glass is being quoted: whether it includes a Low-E coating, an argon fill, and safety glass in any door panels, shower screens, or balustrades where it is legally required.
- –Ask how long the wait is from deposit to installation, since some reviewers waited two months or more, and get that timeframe in writing so you have a reference point if it slips.
- –Find out what the warranty covers: how many years on the sealed units against fogging between the panes, and how many years on the workmanship, and who you contact if a problem appears after the crew has left.
- –Confirm whether the quote includes making good any paint, beading, or seals disturbed during installation and removing and disposing of the old glass, since these are not always included as standard.
- –For upper-floor windows, ask whether scaffolding or special access equipment is included in the price, and for an urgent repair, ask what the call-out fee is and whether the opening will be boarded or fully glazed on the same day.
Also recommended glaziers & double glazing installers in Hamilton
Ranked 6 to 10 on the same public review record.
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6
Glassman Waikato
★ 4.5 70 reviews Top5 Score 1365★ 60 4★ 2 2★ 1 1★ 7Glassman Waikato gets broken windows fixed, ranchsliders made weathertight, and pet doors cut into glass often within the same day as first contact, including on public holidays. Sean travels well outside his immediate area for jobs others have turned away, and when a window repair calls for thicker replacement glass, that upgrade gets done without the customer needing to ask.
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7
CM Glass
★ 4.5 34 reviews Top5 Score 1295★ 28 4★ 1 3★ 1 2★ 1 1★ 3CM Glass fits double glazing into older cottages and handles broken window replacements, ranchslider repairs, and same-day glass jobs with crews who explain the work as they go. On-the-spot decisions are common: technicians have arrived to measure and completed the job in the same visit, and same-day turnarounds from morning call to finished windows by early afternoon have been noted more than once.
location_on 5 Norris Avenue, Te Rapa, Hamilton
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8
Comfortglaze Retrofit Double Glazing
★ 4.9 9 reviews Top5 Score 1255★ 8 4★ 1Comfortglaze coordinates retrofit double glazing installs where the same person who measures also does the fitting, giving homeowners a familiar face from first visit through to completion. The crew goes beyond the core job too, rehinging doors so they close properly and cleaning windows on upper storeys that are hard to reach, before leaving the site tidy.
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9
Retrofit Double Glazing Hamilton (Metro Glass)
★ 4.9 7 reviews Top5 Score 1215★ 6 4★ 1We generate summaries once a business has enough reviews for a reliable sample.
location_on 720 Arthur Porter Drive Burbush, Hamilton
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10
Professional Glass Services
★ 4.3 7 reviews Top5 Score 1175★ 5 3★ 1 2★ 1We generate summaries once a business has enough reviews for a reliable sample.
About this ranking
What the 10 glaziers & double glazing installers listed above hold, at the 19 September 2026 check.
Across the 12 locations we assess glaziers & double glazing installers in, the 115 businesses listed have a median rating of 4.9, and one-star reviews are 2.3% of their total.
How are the top glaziers & double glazing installers in Hamilton chosen? expand_more
We build this page from Google Maps results for glaziers & double glazing installers in Hamilton. Each one is scored on its public rating and review record. Businesses outside the area, or whose reviews describe a different line of work, are left out. Every category and city is rechecked on a rolling cycle, about every two to three months. A location with a subscribing business is rechecked every month, and the whole page updates with it. See how we rank for the full method.
What does a business subscription offer? expand_more
No business can pay for a place in these rankings. Claiming and verifying a listing is free, and adds a phone number to the card. A paid subscription provides an enhanced card with more ways to reach the business, including a website link and a detailed profile page. It also refreshes this page monthly and gives the owner a dashboard with their score breakdown, ranking history and competitor analysis. Claim your listing or see what a subscription includes.
Why isn't my business listed? expand_more
We build this page from Google Maps results for glaziers & double glazing installers in Hamilton. The usual reasons for missing out are a Google Business category that does not match, too few reviews to score near the top, or an address outside the area we cover. Sometimes we miss a business that should be here. Check where you rank first. If you are not there and think you should be, get in touch.