Do I need planning permission for a house extension?

Many single-storey rear extensions fall under permitted development rights. However, if your property is in a conservation area, is listed, or the extension exceeds size limits, you will need planning permission. Always check with your local planning authority before starting work.

How do I know if a builder is trustworthy?

Look for verified customer reviews, proof of public liability insurance, membership of trade bodies like the FMB or NHBC, and ask to see examples of completed projects. A reliable builder will provide a detailed written quotation and a realistic timeline.

What is the difference between a builder and a groundworker?

Builders handle the above-ground structure — walls, roofs, and finishes. Groundworkers prepare the site, dig foundations, install drainage, and lay services. Many extension or new build projects require both.

How long does a loft conversion take?

A typical loft conversion takes 6–10 weeks depending on the type (Velux, dormer, or mansard). The structural work takes 2–3 weeks, followed by plastering, electrics, plumbing, and finishing.

SL postcode area

Find trusted Builder professionals in SL

SL covers areas including Slough, Ascot, Bourne End, Gerrards Cross. Compare builder quotes with clearer local context for travel, access, materials, parking, and property constraints.

What to include in your builder quote request

Ask every builder to price the same drawings, structural assumptions, and provisional sums.
Confirm whether scaffolding, waste removal, skips, and temporary protection are included or excluded.
Get stage payments tied to visible milestones instead of open-ended weekly billing.
Make sure building control, structural engineer sign-off, and making-good items are priced explicitly.
Confirm the postcode district, parking restrictions, access route, and preferred working hours.

Red flags before hiring

Large cash deposits before materials, drawings, or programme details are agreed.
Quotes that ignore structural unknowns but still promise a fixed total and start date.
Refusal to discuss insurance, references, or who is responsible for building control coordination.
Pressure to skip written scope, staged payments, or neighbour access planning.
Quotes that ignore access, waste, permits, or travel time across the SL area.

Builder quote pages by SL district

District pages keep postcode SEO useful without generating thin full-postcode pages.

Builder in SL6

Bray, Bray Wick, Burchett's Green, Cookham, Cookham Dean, Cookham Rise, Furze Platt, Hitcham, Holyport, Hurley, Hurley Bottom, Littlewick Green, Maidenhead, Paley Street, Pinkneys Green, Stud Green, Taplow, Touchen End, White Waltham, Woodlands Park

Builder in SL1

Burnham, Littleworth, Salt Hill, Slough, Upton, Cippenham

Builder in SL4

Boveney, Clewer, Cranbourne, Dorney, Eton, Eton Wick, Fifield, Oakley Green, Old Windsor, Spital, Windsor, Berkshire, Winkfield, Woodside

Builder in SL2

Farnham Common, Farnham Royal, Hedgerley, Stoke Poges

Builder in SL3

Colnbrook, Datchet, Fulmer, George Green, Horton, Langley, Poyle

Builder in SL5

Ascot, Burleigh, Cheapside, North Ascot, South Ascot, Sunningdale, Sunninghill

Builder in SL9

Chalfont Common, Chalfont St Peter, Gerrards Cross, Horn Hill

Builder in SL7

Bisham, Little Marlow, Lower Woodend, Buckinghamshire, Marlow, Marlow Bottom, Medmenham

Builder in SL0

Iver, Iver Heath, Richings Park, Thorney

Builder in SL8

Bourne End, Well End, Buckinghamshire