// CM1 – CM3 · Extensions

    Extensions in Chelmsford.

    Single-storey rears, side returns, double-storey, lofts. We run the lot. Bring your own architect's drawings or use ours, and we'll handle every trade from groundworks to handover. We're on the road around Chelmsford every week, so getting out for a quote is no trouble.

    Extensions in Chelmsford

    // What you get

    Extensions done properly in Chelmsford.

    Chelmsford is our home patch. Most of the crew live within fifteen minutes of the city centre, so getting on site early isn't a stretch. Whether it's a kitchen rip out in Moulsham or a full renovation in Writtle, we know the area, the parking, and the local building control office by name.

    • Single and double-storey rear extensions
    • Kitchen-diner side returns with bi-folds and roof lanterns
    • Loft conversions including dormers and Velux
    • Building Control and structural engineer co-ordination

    // Extensions in Chelmsford

    Why Chelmsford homeowners call us first.

    Single-storey rears with bi-folds are the most common Chelmsford extension we do - we run the lot from groundworks to handover. Chelmsford (CM1 – CM3) sits well inside our regular run, so getting out for a quote is no trouble and there's no call-out fee.

    Property-wise, Chelmsford is a mix of post-war semis around Springfield, newer estates out toward Beaulieu Park, and period terraces in Moulsham. That matters for extensions because every job has its own quirks - what works in a 1930s semi doesn't always suit a new build, and we plan accordingly. Parking is usually fine on residential roads, and we know the local Building Control office well.

    Recent extensions jobs have taken us into Springfield, Moulsham, Galleywood, Writtle, Great Baddow, Beaulieu Park, Broomfield and Old Moulsham - so if you're in or near Chelmsford, we're probably on your road most weeks anyway.

    When you ask us for extensions in Chelmsford, you get one team for the whole job, a fixed written quote before we start, and a single point of contact from first visit to handover. No subcontractors disappearing halfway, no surprise extras on the invoice.

    KITCHENSBLOCK PAVINGPATIOSFENCINGRENOVATIONSDECORATINGEXTENSIONSESSEXKITCHENSBLOCK PAVINGPATIOSFENCINGRENOVATIONSDECORATINGEXTENSIONSESSEX

    // Recent jobs

    Recent extensions projects near Chelmsford.

    Bespoke Kitchen Fit in Chelmsford - extensions by AshBon Contracts

    Bespoke Kitchen Fit

    Chelmsford

    Full design, supply and installation including worktops, splashback and integrated appliances.

    // Where we work

    On site across Chelmsford.

    Our crew is on the road around Chelmsford (CM1 – CM3) most weeks. First visit is free, the quote is in writing, and there's no call-out fee anywhere inside our regular patch.

    • Writtle
    • Great Baddow
    • Springfield
    • Moulsham
    • Boreham
    // Service area: ChelmsfordView larger map ↗

    // Chelmsford FAQ

    Extensions in Chelmsford,
    common questions.

    A lot of single-storey rears fall under permitted development. We'll advise per project and sort the lawful development certificate where needed.

    A typical single-storey rear extension takes 10 to 14 weeks from groundworks to handover.

    Yes. Fixed quotes once drawings and structural calculations are signed off.

    Single-storey rear extensions in Chelmsford start around £1,800/m² for a basic spec and run to £2,800/m² for higher-end finishes with bi-folds and underfloor heating. Double-storey is roughly 1.5x that per m².

    Chelmsford City Council handles planning and building control - most of our smaller jobs (patios, fencing under 2m, internal alterations) fall under permitted development, but we always check the planning portal before we quote.

    We cover Springfield, Moulsham, Galleywood and the rest of the Chelmsford postcodes - and anywhere within a 20-minute drive of the town centre. There's no call-out fee and the first visit is free.

    Lead times in Chelmsford are usually two to four weeks for smaller jobs and four to eight weeks for extensions or full renovations. Once you accept the quote we'll lock the start date in writing.

    // Enquire

    Quote for extensions in Chelmsford.

    Send a few details and we'll come back within one working day with a fixed price and a realistic start date.

    // Replies within 1 working day · Free quotes · No call centres

    Extensions in other towns

    Other services in Chelmsford