7 Best Window Installers in Bromley for 2026

Bromley's a borough of real contrasts when it comes to housing stock, from the 1930s semis around Shortlands and Bickley to the Victorian terraces near Bromley South, plus newer builds out towards Petts Wood and Orpington. That mix means window installers here need to work across timber sash replacements, uPVC casements, and composite doors, often on properties with period features that need matching or conservation-area rules to consider. If you live near the High Street or in one of the borough's conservation zones such as parts of Bromley Common, you may also need planning permission or listed building consent before swapping out original windows, so a fitter who knows the local council's requirements saves a lot of hassle.

The businesses featured on this page are drawn from public business listings and ranked mainly by review rating and review count, with a small lift given to those showing a working website and phone number. We read each business's homepage to confirm window installation is genuinely what they do day to day, which keeps general builders or unrelated trades from cluttering the list. Any listing flagged as permanently closed gets removed automatically. Where you see a Trust Verified badge, that business has gone through our fuller verification process covering trade qualifications and accreditations, public liability insurance, trading history, customer review history and registered company information (our How We Verify page sets out exactly what that involves). For businesses without the badge, we'd encourage you to run those same checks yourself before booking anything.

Before committing to a quote, ask to see evidence of FENSA or CERTASS registration, since this covers the building regulations sign-off for replacement windows without needing a separate council inspection. Check whether the price includes disposal of old frames, scaffolding if needed, and making good to plaster or render around the reveals. It's worth asking about the warranty on both the glazing units and the installation labour separately, as these often differ. Getting two or three quotes is standard practice in this trade, and the spread can be surprisingly wide for what looks like the same job, so don't just take the first number you're given.

How We Select & Rate The Best Window Installers in Bromley

Businesses here are ranked using review rating and review count pulled from public business listings, with a modest boost for those with a working website and phone number. We check each business's homepage to confirm window installation is their primary trade, which filters out unrelated businesses. Listings marked as permanently closed are removed automatically. Where a business carries our Trust Verified badge, it has passed additional checks covering trade qualifications, public liability insurance, trading history, customer review history and registered company details (see our How We Verify page for the full breakdown). Businesses without that badge haven't been independently verified by us, and their inclusion isn't an endorsement. Always carry out your own checks before hiring.

Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. Every other listing is ranked on rating and review count from third-party business listings. How we rank & verify →

Quick Comparison: Window Installers in Bromley

#	Business	Rating	Reviews	Phone
1	Metroglaze London Ltd	⭐ 5.0	34	07958 539711	View →
2	Window Express Ltd	⭐ 4.7	41	020 8464 0756	View →
3	W J Richardson Glazing Ltd	⭐ 4.9	21	020 3151 8227	View →
4	Sashco	⭐ 5.0	7	01689 497849	View →
5	B&T GLASS-GLAZING-WINDOWS	⭐ 4.7	9	07951 496042	View →
6	Spooner Brothers london	⭐ 5.0	4	07779 250562	View →
7	Eden Park Installations	⭐ 4.8	5	020 8777 1416	View →

Our Top Picks

Metroglaze London Ltd

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★★★★★ 5.0 (34 reviews)

Bromley 07958 539711

Window installation in Bromley is the focus of Metroglaze London Ltd, covering replacement units and fitting for domestic properties across the BR2 postcode. The firm has built a record of consistent workmanship, reflected in a five-star average from 34 reviews. Work is carried out directly for local households rather than through subcontracted teams.

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Window Express Ltd

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★★★★★ 4.7 (41 reviews)

Bromley 020 8464 0756

Rated 4.9 out of 5, Window Express (Bromley) Ltd has built a consistent record among residents across Bromley for its window installation work. The company operates from BR2 9LD, keeping its focus on the local area rather than spreading thin across the county. Its rating reflects a volume of completed jobs, not a handful of reviews.

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W J Richardson Glazing Ltd

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★★★★★ 4.9 (21 reviews)

Bromley 020 3151 8227

W J Richardson Glazing Ltd is a glazing contractor serving Bromley and the surrounding area. The company handles window installation across residential properties, operating from the BR4 postcode. With a focused specialism in glazing rather than a broad building trade remit, it offers a straightforward point of contact for homeowners replacing or upgrading windows.

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Sashco

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★★★★★ 5.0 (7 reviews)

Bromley 01689 497849

Bromley properties, particularly those with period features, make up much of Sashco's workload, with sash window installation and repair as its focus. The firm holds a five-star record from seven reviews, reflecting attention to detail on joinery that suits older housing stock. Work is carried out around the BR2 area.

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B&T GLASS-GLAZING-WINDOWS

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★★★★★ 4.7 (9 reviews)

Bromley 07951 496042

Window installation, door installation, and glass supply are the core trades at B&T Glass-Glazing-Windows, a Bromley-based glazier also covering repairs and replacements across both windows and doors. The business holds a 4.7 Google rating. Enquiries can be made through their website at bandtglass.com.

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Spooner Brothers london

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★★★★★ 5.0 (4 reviews)

Bromley 07779 250562

Spooner Brothers London installs conservatories, orangeries and skypods alongside bi-fold doors, patio sliding doors and a range of window styles. Based in Bromley, the company covers glazing and framed structure work across the area. The BR4 postcode places them on the south-east London fringe, suited to residential projects throughout the surrounding boroughs.

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Eden Park Installations

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★★★★★ 4.8 (5 reviews)

Bromley 020 8777 1416

Families in the Bromley area needing draughty or ageing windows replaced often turn to Eden Park Installations. The company fits double glazing suited to period and modern properties alike, with attention paid to insulation and security. Early feedback has been positive, with a 4.8 rating from five reviews reflecting careful, considered workmanship.

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Transparency notice: Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. All other listings are ranked by a combined score drawn from ratings and review counts published on third-party business listings, plus basic completeness signals such as a working website and phone. A Trust Verified badge means we have independently checked that business's documents; businesses without it have not been independently verified by us. How we verify →

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Frequently Asked Questions

How much does a window installers cost in Bromley?

A single uPVC casement window supplied and fitted typically runs from around £400 to £700, depending on size and whether it's a straightforward replacement or involves brickwork alterations. A full house re-glaze, say eight to ten windows on a typical semi in Shortlands or Beckenham Road, often lands somewhere between £4,000 and £8,000. Timber sash windows, especially where you're matching period detailing in a conservation area, push costs up considerably, often £1,000 to £1,800 per window. Composite doors add another £900 to £1,500 on top. Prices vary with glazing spec (double vs triple glazing, low-E coatings), frame material and access difficulty, so getting two or three like-for-like quotes is the only way to know if you're being quoted fairly.

Do I need planning permission to replace windows in Bromley?

Most straight replacements fall under permitted development and don't need planning permission, but if your property is listed or sits within one of Bromley's conservation areas, such as parts of Chislehurst or Bromley Common, you may need consent, particularly if you're changing the style, material or colour of the frames. It's worth a quick call to Bromley Council's planning team or a check on their conservation area maps before ordering anything, since installing without consent where it's needed can mean costly remedial work later.

How long does a typical window installation job take?

A handful of windows, say four to six, usually takes one to two days with a two-person team, assuming no structural work is needed. A full house re-glaze on a three-bedroom semi often takes three to five days. Timber sash restorations or replacements take longer, sometimes a week or more, because of the detailed joinery involved. Weather can delay exterior work, and if scaffolding's needed for upper floors, factor in extra time for that to go up and come down.

What certificates should I ask for after the work is done?

You should receive a FENSA or CERTASS certificate confirming the installation meets building regulations, which also gets registered with your local authority automatically. Ask for a copy for your records, as you'll need it if you ever sell the property. You should also get a guarantee document covering the glazing units (commonly 10 years) and a separate one for the installation workmanship, which is often shorter, around 5 to 10 years depending on the installer.

Is it worth choosing double glazing over triple glazing in Bromley?

For most Bromley homes, double glazing with a good low-E coating and argon fill offers a sensible balance of cost and performance. Triple glazing gives better thermal and noise insulation, which matters more if you're near a main road like the A21 or A222, but the frames are heavier and pricier, and the difference in energy bills often doesn't justify the extra cost on smaller properties. If you're on a busier road or backing onto the railway near Bromley South station, the added sound reduction from triple glazing can be worth the premium.

How should I choose between window installers in Bromley?

Start by checking whether the business is FENSA or CERTASS registered, since this is required for legal building regulations compliance on replacement windows. Look at their public reviews for patterns, not just the star rating, one or two negative reviews mentioning missed appointments or poor finish is worth noting. Ask to see photos of similar previous jobs, ideally on a property style similar to yours. Confirm what's included in the quote in writing, including disposal, making good, and any scaffolding costs, and get this from at least two or three installers so you can compare fairly. Finally, check they carry public liability insurance and ask for proof, since anyone working at height or altering brickwork on your home should have this in place.

7 Best Window Installers in Bromley for 2026

Quick Comparison: Window Installers in Bromley

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