The 10 builders from Google's results for St Albans, ranked on Google rating, online presence and other factors. Updated 10 September 2026.
on GoogleSt Albans
St Albans Builders carries out construction projects for homeowners across the local community. The company handles home extensions, loft conversions, and general building work in and around St Albans.
01727 637183 Arquen House, 4-6 Spicer St, St Albans AL3 4PQ
on GoogleBaldock
Beswick Building Ltd constructs house extensions and carries out residential renovations across Hertfordshire. Based in Baldock, the company serves clients throughout St Albans, Harpenden, and Welwyn Garden City with full project management services.
01727 221284 1st floor, 28 Whitehorse St, Baldock SG7 6QQ
on GooglePorters Wood, St Albans
Eagle Design and Build provides residential construction services across St Albans. Its work spans architectural design through to building completion, including loft conversions, house extensions, and interior refurbishments.
01727 743829 Long Spring, Porters Wood, St Albans AL3 6EN
on GoogleGuide, Milton Keynes
Nextgeneration Construction delivers a wide range of home building services in St Albans and Milton Keynes. The company carries out residential extensions, house conversions, and complete property renovations.
01908 473566 Unit 12, Crossinglands Business Park, Salford Rd, Aspley Guise, Guide, Milton Keynes MK17 8HZ
on GoogleSt Albans
Mgreaves Construction undertakes various building projects for residential properties in St Albans. Its work includes property extensions, loft conversions, general refurbishments, and fitted kitchen and bathroom installations.
01727 834627 96 Cambridge Rd, St Albans AL1 5LF
on GoogleWorks Rd, Letchworth Garden City
DRB Building Limited provides building services for domestic and commercial clients. Working across Letchworth Garden City, St Albans, Harpenden, and surrounding villages, the company constructs property extensions, new builds, and complete building refurbishments.
01462 654287 Unit 3, Oakfield Business Corner, Works Rd, Letchworth Garden City SG6 1FB
on GoogleHemel Hempstead
RPM Building Contractors Ltd undertakes domestic and commercial building work across Hertfordshire, Bedfordshire, and Buckinghamshire. From Hemel Hempstead, the team handles projects ranging from single room redecorations to barn conversions and new housing developments.
01582 794481 Cherry Tree Ln, Hemel Hempstead HP2 7HS
on GoogleLondon Colney, St Albans
St Albans Builders delivers construction, refurbishment, and new build services for local property owners. Operating from London Colney, the firm covers St Albans, Harpenden, Radlett, and parts of North London.
01727 769483 36 Caledon Rd, London Colney, St Albans AL2 1PF
St Albans
DB Building Services undertakes residential and commercial building work throughout St Albans and wider Hertfordshire. The team constructs property extensions, loft conversions, driveways, and new builds, alongside general landscaping and home renovations.
London Colney, St Albans
L A Blackman Building provides building solutions for residential and commercial clients in London Colney and St Albans. Its range of work encompasses new builds, property extensions, loft renovations, and structural alterations.
07831 518723 Seaton Rd, London Colney, St Albans AL2 1RL
In St Albans, small structural job typically costs £1,700 – £6,000. Labour in Hertfordshire runs 16% above the UK median, which accounts for most of the difference from the same job elsewhere.
These are the firms from Google's results for "builders st albans". They are ranked on Google rating, online presence and other factors.
The figures above are St Albans ranges. These explain what drives them, so you can read a quote properly.
Per-square-metre rates for light, standard and full renovations, prices job by job, rates by region, and the VAT, fees and contingency that sit on top of the build.
2026 prices for single and double garage conversions by garage type and room, what a quote should include, the fees and VAT around the build, and the rules in each UK nation.
Which jobs are notifiable, how the application routes work, what building control inspects, and what a completion certificate is worth when you come to sell.
For anything over about £10,000, yes. The JCT Home Owner contract is short, plain English and free to buy. It fixes the payment schedule and the process if things go wrong, which is exactly what an informal arrangement does not.
Materials up front is reasonable. A large percentage of the total is not. Stage payments against completed work are the norm, and a firm insisting on 50% before starting is a warning sign.