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Builders & Extensions in Slough

Loft conversions, extensions and full refurbishments in SL1, SL2 and SL3.

No firm here lists Maidenhead & Marlow (SL6–SL8) yet — these Slough firms may still travel to you. Ask when you request a quote.

Extensions, lofts and renovations since 1998

Covers
Slough, Windsor, Berkshire
SL1 · SL2 · SL3 · SL4
Hours

Extensions, loft conversions and refurbishments in Slough

Covers
Slough and surrounding Berkshire
SL1 · SL2 · SL3
Hours
Mon–Sat by appointment

Get builders & extensions quotes

Tell us what you need and we'll pass it to up to three vetted local tradespeople — anywhere from SL0 to SL9. No cost, no obligation.

We share your details only with the tradespeople matched to your job.

Local know-how

Builders & Extensions in Slough: what to check and how to get an accurate quote

Practical local guidance across the SL postcodes, from Slough to Windsor and Maidenhead — accreditations worth checking, Slough Borough Council and landlord rules, and the details that let a local firm price the job first time.

Do I need planning permission for an extension in Slough?

Many single-storey rear extensions fall under permitted development, but limits on depth, height and how much of the garden you cover apply, and they are tighter for flats, maisonettes and homes in a conservation area. Slough Borough Council operates a pre-application advice service, and your builder should be able to tell you whether you need full permission, a lawful development certificate, or only building regulations sign-off.

What information makes a building quote accurate?

Rough dimensions, photos of the space from two angles, whether you want the same footprint or a bigger one, and your must-haves versus nice-to-haves. Say whether you already have drawings or a structural engineer's calculations — a builder pricing from measured drawings can commit to a firm figure, while a builder pricing from a conversation can only give a range.

How do I check a builder is properly covered?

Ask for public liability insurance, and for larger jobs check membership of a scheme such as the Federation of Master Builders or TrustMark, which require references and financial checks. If the work is structural, confirm who is issuing the building regulations completion certificate — you will need it when you sell.

Who deals with the waste from my build?

You have a legal duty of care for waste leaving your property. Your builder should be a registered waste carrier or use one, and should give you a waste transfer note. Slough has an active fly-tipping enforcement team, and if your rubble turns up on a verge the trail leads back to the householder who paid for it.