Written by Mark Reid,
Trades Editor ·Verified 23 September 2026
Romford's housing stock is a mixed bag, and that shapes the kind of window work in demand across the area. You've got the 1930s semis around Gidea Park with their original timber-framed bay windows, the post-war terraces near Collier Row that mostly went over to uPVC decades ago, and newer developments towards Harold Wood where double glazing is already fitted but starts needing attention after a decade or so of use. Flat owners in the blocks near the station often need sash windows replaced under strict lease conditions, while homeowners further out towards Havering-atte-Bower sometimes want timber-effect frames to keep in character with village surroundings. A good local installer understands these differences and won't try to sell you the same uPVC casement solution regardless of what your house actually needs.
The businesses featured on this page come from public business listings, ranked mainly by review rating and how many reviews they've built up, with a small lift given to those showing a working website and phone number. We read each business's homepage before including it, checking that window installation is genuinely their main line of work rather than something bolted on to a broader building or handyman service. That step keeps general builders and unrelated tradespeople off this list. Any listing flagged as permanently closed gets removed automatically, so you're not looking at businesses that no longer trade.
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 any business without the badge, none of that has been independently checked by us, so it's down to you to ask the right questions before booking. Request to see FENSA or CERTASS certification for the installation, ask whether they're registered with a competent persons scheme, and get proof of public liability insurance in writing. Getting two or three quotes for the same spec of windows is standard practice and will quickly show you if one quote is out of line, either too cheap to make sense or padded out unnecessarily.
How We Select & Rate The Best Window Installers in Romford
Rankings are driven mainly by review rating and review count pulled from public business listings, with a small lift given to businesses that show a working website and phone number. We check each business's homepage to confirm window installation is what they primarily do, which keeps unrelated trades off this page. Listings flagged as permanently closed are removed automatically. Businesses marked Trust Verified have gone further, passing our full verification covering trade qualifications, insurance, trading history, customer review history and registered company details; see our How We Verify page for the complete list. Other businesses here haven't been independently checked by us, and being listed isn't an endorsement. Do 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 →
Homeglaze Home Improvements is a window installation company serving Romford and the surrounding area. Operating from the IG7 postcode, the firm fits double glazing, replacement windows, and related home glazing products for residential customers. Its website at homeglaze.co.uk outlines the full range of options available.
Window installation and supply across Romford and the surrounding Kent borders is the core work of All Kent Windows Limited. The company fits replacement windows for domestic properties, operating out of the DA17 area. Its name reflects a regional focus that extends beyond a single town, making it a practical option for homeowners across that stretch of south-east London and north Kent.
Hainault Home Improvements Limited is a window installation company serving Romford and the surrounding area. Operating from the IG6 postcode, the firm focuses on residential window fitting and replacement. Its website outlines the range of window styles available to homeowners looking to update their properties.
Imperial Glazing Solutions installs windows and glazing across Romford, with the IG1 postcode placing it well for covering both the town centre and surrounding areas. The company works on residential properties, supplying and fitting replacement units to suit a range of house styles. Straightforward in scope, it focuses on the core task of getting glazing installed correctly rather than stretching across unrelated trades.
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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A standard uPVC casement window supplied and fitted typically runs from around £400 to £700 per window, depending on size and whether it's a straightforward swap or needs structural work. A full house re-glaze, say eight to ten windows on a three-bed semi, often lands somewhere between £4,500 and £8,000. Timber sash windows cost more, often £900 to £1,500 each given the joinery involved, and aluminium frames sit in between. Prices shift with glazing spec too, triple glazing adds a noticeable premium over standard double glazing. Get two or three quotes for the same job so you can compare like for like rather than guessing at value.
Do I need planning permission or FENSA certification for new windows in Romford?
Most window replacements on a standard house fall under permitted development and don't need planning permission, unless your property's listed or in a designated conservation area, and there are pockets around Romford Market and older parts of the town where conservation rules apply. What you do need is building regulations compliance, which a FENSA or CERTASS registered installer can self-certify on your behalf. Always ask for this certificate after the job, it's proof the work meets current standards and it matters when you come to sell the house.
How long does a window installation job usually take?
A single window replacement is often done in half a day once the installer's on site. For a full house, expect one to three days depending on how many windows you're having done and whether there's any brickwork or lintel repair needed alongside. Bay windows and sash replacements tend to take longer because of the extra joinery. Ask upfront for a rough timeframe and whether they'll need to order frames in advance, since made-to-measure uPVC or timber frames can take a couple of weeks to arrive before fitting even starts.
What's the difference between uPVC, timber and aluminium windows?
uPVC is the most common choice locally because it's low maintenance and reasonably priced, good for terraces and semis where you're not chasing a period look. Timber suits older properties, especially around Gidea Park and Harold Wood where original sash windows are part of the character, but it needs repainting or staining every few years. Aluminium gives slimmer frames and a more modern look, often chosen for extensions or larger glazed openings, and it's more expensive than uPVC but very durable. Think about maintenance appetite as much as budget when deciding.
Will new windows actually reduce my energy bills?
Replacing old single glazing or worn double glazing with modern units does help, particularly if your current frames have draughts or failed seals letting in cold air. Look for a good U-value rating, lower is better, and check the energy rating label if the installer provides one. It won't transform a heating bill on its own, boiler efficiency and loft insulation matter just as much, but paired with those it makes a genuine difference to how quickly a room holds its heat through a Romford winter.
How do I choose between window installers in Romford?
Start by checking whether they're FENSA or CERTASS registered, since that covers the building regulations side of the job. Ask to see their public liability insurance certificate rather than just taking their word for it, and ask how long they've been trading locally, as an established installer will have a track record of jobs you could ask to see photos of or even visit. Read through recent reviews rather than just the star rating, patterns in complaints about missed appointments or poor aftercare tell you more than a number does. Get a written quote that specifies glazing type, U-values, frame colour and warranty length, and get that same spec from at least two other installers before deciding.
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