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Foundation Contractors
We plan strip, trench fill, raft and piled foundations around ground conditions, drainage, access and engineer details, giving your build a safer start below ground.
Why Choose SB for Foundations
Ground conditions and soil testing help decide the right footing type.
Foundation depths are set using load, ground and engineer details.
Foundation concrete, starter bars reinforcement are planned in sequence.
Drainage, damp proof course and substructure works are built in early.
Foundation Options
Every site is different. The correct foundation depends on soil conditions, structural engineer drawings, access, drainage and the build above.
A common option where soil conditions and structural load requirements allow.
Designed to spread loads across weaker or less stable ground.
Planned around full layout, drainage and structural design.
Designed for sites where deeper support is needed below poor ground.
Suited to sites where deeper structural support is required.
Built to work safely with existing property access.
Clear planning helps avoid delays once excavation starts. We look at ground conditions, engineer specifications, drainage, regulations, cost and timing before the concrete pour.
Ground Conditions
Ground conditions and soil testing help decide whether strip, trench fill, raft or piled foundations are safest for your project.
Engineer Details
Structural engineer specifications, foundation depth calculations, starter bars and reinforcement should be agreed before footing work begins.
Drainage & DPC
Drainage, damp proof course and substructure work need planning before the build rises above ground.
Rules & Checks
Building Regulations for foundations may involve checks on depth, drainage, damp proofing, concrete and structural setup before the next stage starts.
Cost & Timeline
Cost of foundations depends on access, ground, depth, footing type, drainage and inspections. The timeline can also change with weather and readiness.
Posted on Kathryn FairsTrustindex verifies that the original source of the review is Google. From the first consultation to the final result Sam and his team carried out exemplary work on our large house extension. We were especially impressed with the standard of brickwork in the build. Simon and Sam were happy to adapt and correct as different situations arose, without any hassle. The whole team were a pleasure to have in our home.Posted on Debbie GinnsTrustindex verifies that the original source of the review is Google. From start to finish, Sam and his team have been fantastic, building an annex for my Mum. As Mum said, it was like having family building it for us, and exactly what she wanted, 100% honest, reliable, friendly team. Couldn't have asked for more. Thank you allPosted on Joanne KirbyTrustindex verifies that the original source of the review is Google. Sam and his team at SB Construction were very professional, hard working and courteous. We are extremely pleased with our finished extension and would highly recommend them.Posted on Tom RiggallTrustindex verifies that the original source of the review is Google. Fantastic experience having SB construction complete our extension a few years back. Very professional and always reliable and came the days they said. The 2 storey extension to the left of our house was completed in no time at all .. and to a high standard, sourced bricks to match perfectly. Would highly recommend them .. brilliant from start to finish ! Thank youPosted on Suzi IrelandTrustindex verifies that the original source of the review is Google. Sam and his team recently completed a loft conversion for us, and we can’t recommend them enough. Where we had been let down by other professionals previously, SB construction went above and beyond to ensure that the build was able to go ahead. And wow what a transformation we couldn’t be happier. Not only the build itself is fantastic, but the family run feel and that personal touch made the whole build experience enjoyable. Suzi & Graham Ireland.Posted on paul keysTrustindex verifies that the original source of the review is Google. SB construction, I don’t believe they can be bettered, they really do bring your dream to life.. premium build quality by highly skilled craftsmen. Thank you for meeting my expectations and living up to your promises.Posted on Claire DoveyTrustindex verifies that the original source of the review is Google. Very happy with build of extension and annex. All staff friendly and courteous. Would highly recommendPosted on Kim ButlerTrustindex verifies that the original source of the review is Google. Very professional firm excellent workmanship Highly recommended.
Get in touch today for a free detailed quote.
What people ask about Foundation ?
Foundation cost depends on soil conditions, excavation depth, footing type, drainage, access and engineer requirements.
The right option depends on ground conditions, load and structural design. Strip, trench fill, raft and piled foundations all suit different sites.
Yes. Foundations for house extensions must work with the existing property, access, drainage and nearby structures.
Yes, foundation work may need building control checks before concrete placement and before the build continues above ground.
The timeline depends on excavation, inspections, weather, ground conditions, foundation type and site access.

Recent Foundation Work
View recent groundwork projects showing excavation, concrete placement, reinforcement, drainage and foundation preparation for new builds and extensions.
New Build Contractors
Talk to SB Construction about your site, ground conditions and foundation plans before excavation begins.
Free Foundations Guide
Use our guide to compare foundation types, understand approvals and spot cost factors before you request quotes or start groundwork.
SB Construction started with Sam’s passion for building and renovating homes. SB are now the trusted building company for Homeowners across Lincolnshire.
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