About
We're a family-run house extension and loft conversion specialist based in Tilbury, Essex. We know a loft or extension is one of the biggest things you'll ever spend on, and that the biggest worry is being let down or overcharged. So we do it differently. A free site survey, a fixed written quote before any work starts, proper structural work, and a clean sign-off. You always know where you stand.
Your home is the biggest thing you own. It deserves a builder who treats it that way.
A registered company (No 14150159) and VAT registered, fully insured on every project. The basics done properly.
A free site survey, then a fixed written quote before we lift a tool. No vague estimates, no creeping costs, no surprise invoices.
Steelwork, underpinning, openings and full builds. We do the structural work most builders subcontract out, in-house.
Why ANS
Our team brings over 10 years of combined experience in house extensions, loft conversions, structural steel installations and renovation projects across London and Essex. What we offer is straightforward: proper credentials, fixed written quotes, and structural work done right. Here's what that means.
Combined structural and construction experience across the team, project after project.
Comprehensive cover on every project, homeowner or contract.
Written and agreed before work starts. No surprises.
Company No 14150159 · VAT GB462741096.
What We Do
From a single steel beam to a full loft or extension, we handle the structural side properly. Here's what we take on for homeowners and contractors.
Turn unused loft space into a real room. We handle the structure, steel and build, and liaise with building control so it's signed off properly.
More space without moving. Single-storey rear and side-return extensions built from the groundworks up.
Reclaim wall space safely. Full or partial chimney breast removal with the correct structural support installed.
Open up your home. Knock-throughs and new openings with the right beam and support, done to spec.
The load-bearing work most builders subcontract, done in-house. Beams, columns and connections installed correctly.
Strengthen and stabilise. Underpinning, foundations, concrete works and repairs for homes and contract sites.
For main contractors, ANS also covers temporary works, demolition and soft strip out, diamond drilling and sawing, joisting and timber works, brickwork and blockwork, and general builders works.
Portfolio
A look at the kind of projects we take on for homeowners and contractors across London and Essex.
Structural design and calcs, steel installation, dormer build and building control sign-off. The full structure handled in-house, from first survey to a room you can actually live in.
Groundworks and foundations, steel frame, brick and blockwork, and a full structural build to sign-off. One contract from the first dig to the finished shell.
A structural wall out and the ground floor opened right up: RSJ sizing and install, temporary support, making good and building control compliance.
Site Diary
No staging and no stock imagery — these frames come straight off our own sites. Early starts, tidy trenches, steels going in and slabs going down, photographed by the team while the work happens.
Testimonial
A few words from homeowners and contractors we've worked with across London and Essex.
ANS put the steels in for our loft conversion. Clean structural work, building control signed it off first time, and the price didn't move a penny from the written quote.
They knocked through our kitchen wall and fitted the RSJ in two days. Tidy, polite, everything dust-sheeted. You'd barely know they'd been in the house.
We use ANS as our structural subcontractor. Steelwork turned up when promised, the work was spot on and the paperwork was in order. We'll be using them again.
Fixed written quote, no surprises, and our rear extension went up exactly on the timeline they gave us. Family firm and it shows. They actually care.
Chimney breast out, gallows brackets in, building control happy. Straightforward, honest and fast, with a proper clean-up at the end.
Underpinning our Victorian terrace felt daunting, but ANS explained every step and kept the site safe and tidy throughout. Solid work, literally.
Team
ANS is family run. The same people who quote your job are the ones who turn up and build it.
How It Works
No vague estimates and no vanishing act. Four clear steps from first call to sign-off.
We come out, look at the job properly, and understand exactly what's needed. No charge, no obligation.
You get a clear, fixed written quote before anything starts. No hidden costs, no surprises.
Our team gets to work. Proper structural work, kept tidy, with you kept in the loop.
Final checks, building control sign-off where needed, and our guarantee on the work.
Pricing
We don't do vague estimates. Every project starts with a free site survey and a fixed written quote, so you know the full cost before we begin. Here's what each type of project includes.
Fixed written quote
After a free survey. The full cost, agreed before we start.
Fixed written quote
After a free survey. One contract from groundworks to sign-off.
Priced per project
For homeowners and main contractors.
Not sure which fits your project? Call us and we'll talk it through. The survey and quote are always free.
FAQs
Can't find what you're looking for? Get in touch and we'll answer any question you have. No sales pressure, just straight answers.
We cover the whole of London, with a focus on prime residential areas such as Kensington, Chelsea, Hampstead, Islington, Richmond and Fulham, and throughout Essex. If you're not sure, just ask.
Yes. A free, no-obligation site visit and survey, followed by a fixed written quote. No charge for the visit and no pressure to proceed.
Yes. Fully insured on every project, a registered company (No 14150159) and VAT registered (GB462741096).
Yes. Structural design, steelwork and building control liaison are part of our loft and extension projects, so the job is signed off properly.
Many lofts and single-storey rear extensions fall under Permitted Development. We advise at the free survey and handle building control sign-off.
Yes. We take on subcontract structural work: steelwork, underpinning, temporary works, concrete, demolition, diamond drilling, joisting, and brick and blockwork.
It depends on scope. We give you a firm written timeline with your quote and stick to it. If anything changes, we tell you straight away.
Call 07412 737387, message us on WhatsApp, or use the form below. We'll arrange a free site visit, usually within the week.
Contact
Fill in the form and we'll get back to you quickly to arrange your free site visit. Prefer to talk? Call 07412 737387 or message us on WhatsApp.
ANS Structural Ltd
Tilbury, Essex, RM18 8JT
info@ansstructural.co.uk
Family run · Fully insured
Your enquiry has opened in WhatsApp or your email app with everything filled in — just press send there. We'll get back to you quickly to arrange your free site visit. If nothing opened, call 07412 737387.
Serving the whole of London, including Kensington, Chelsea, Hampstead, Islington, Richmond and Fulham, and throughout Essex.