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Bolt Structures — West London & Hertfordshire's Trusted Structural Engineers

Certified, insured chartered structural engineers serving West London and Hertfordshire — extensions, knock-throughs, surveys, basements and home renovations, with free first consultations.Call 0207 101 3687 or email info@boltstructures.com for a free quote.

MAIN OFFICE ADDRESS

REGUS, 79 College Rd,
Harrow HA1 1BD

HERTFORDSHIRE OFFICE

6 Andersons Croft, Cotterells, Hemel Hempstead HP1 1AG

PHONE NUMBER

0207 101 3687

EMAIL ADDRESS

info@boltstructures.com

Receive A Free Quote

How It Works

From the first call to the final sign-off, our process is simple, transparent and built around you. A chartered structural engineer is involved at every step — no handovers, no hidden fees, no surprises.

Bolt Structures Limited is a UK-registered, fully insured chartered structural and civil engineering consultancy. Our team carries £2m professional indemnity insurance and a 100% success rate on Building Regulation applications.

Our Service Areas

We proudly support homeowners, builders, and developers across:

North West London and Hertfordshire, with a strong focus on areas including Ealing, Greenford, Hayes, Stanmore, Edgware, Bushey, Borehamwood, Harrow, Wembley, Northolt, Ruislip and surrounding locations.

Our structural engineering services also extend across key parts of West London and into Hertfordshire, covering areas such as Watford, Hemel Hempstead, Northwood, Pinner, Uxbridge, Acton and Hillingdon.

Whether you’re searching for a structural engineer near you in North West London or need support on a project in Hertfordshire, Bolt Structures provides fast, reliable and fully compliant engineering solutions across all nearby towns and boroughs.

0207 101 3687​

Bolt Structures | Structural & Civil Engineers place picture
5.0
Based on 30 reviews
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XK Ye profile picture
XK Ye
21:18 29 Jan 26
We needed to push down a load-bearing wall, so we called a structural engineer. The service was prompt, professional, and reasonably priced. We would highly recommend them to anyone in need of their services.
Gerald profile picture
Gerald
10:15 22 Jan 26
The report was very clear and comprehensive.
Jeet Sarai profile picture
Jeet Sarai
16:35 14 Jan 26
Good service and professional drawing work provided. Zeshan was very helpful and delivered our project on time.
Highly recommend Bolt Structures team for calculation and drawings
Nisha Hassan profile picture
Nisha Hassan
16:34 14 Jan 26
Zeshan Khan came to do a structural calculation for my property, he was quick and very professional. An expert in his field, would recommend him and use his company again. Gave me some very good advice and helpful hints. Very polite gentleman. Thank you very much
Susan mannix profile picture
Susan mannix
09:51 03 Sep 25
I had a great experience working with Bolt Structures.  From the beginning they were incredibly helpful and took the time to clearly explain the entire process.  Every question I had was answered thoroughly, which made me feel confident and informed throughout.

Although the project took a bit longer than I initially expected the documentation and drawings were absolutely worth the wait - detailed, accurate and exactly what I needed.  A special thanks to Zeshan for conducting a site visit, it made a real difference in understanding the scope and ensuring everything was tailored to my requirements.

I would highly recommend Bolt Structures for their professionalism, patience and quality of work!
Mo Akh profile picture
Mo Akh
08:25 03 Sep 25
Really pleased with the service received from Bolt Structures. The turnaround time from the initial onsite to receiving the drawings and calculations was very quick. Communication throughout the process was great and they were quick to get back to me with follow-ups when the council had asked for more information.
Would definitely recommend Bolt Structures for all of your drawing and structural calculation needs!

Why Choose Bolt Structures

Single Storey Rear Extension

Why Choose Bolt Structures, London’s Best Structural & Civil Engineers?

Chartered Engineers

Our Engineers are chartered and experienced, maintaining our 100% building regulation approval rate

12+ Years Of Experience

We have 12+ years of experience so nothing about your project will be a surprise

100% Approval

We have a 100% building regulation approval rate, meaning your project won't get endlessly delayed

Transparent Pricing

Our pricing remains transparent and clear, so you know exactly how much your project will be

0207 101 3687​

How It Works

Free Consultation & Site Visit

Call 0207 101 3687 for a no-obligation quote

Structural Planning & Design

We discuss your project, understand your goals, and advise on structural requirements during a free site visit.

Construction Support & Liaison

Our certified engineers complete calculations, drawings and Building Regulation checks tailored to your home.

Completion & Quality Guarantee

We support your contractor on site — answering queries, attending key stages, and liaising with Building Control.

Contact FAQs

The fastest route is the phone — call 0207 101 3687 Monday to Friday, 9am to 6pm, and a chartered structural engineer will pick up. Outside hours, leave a message or use the contact form and we’ll come back same working day.

For most projects, yes. Drawings lie, measurements don’t — a quick site visit lets us scope the job properly and avoid quoting on assumptions. We don’t charge for the initial visit on most domestic projects.

Most written quotes are turned around within 24–48 hours of the call or site visit. We know you’re often working to a builder’s start date.

Yes — Bolt Structures is fully insured with £2m of Professional Indemnity cover and full Public Liability. Insurance certificates are available on request before any work starts.

We cover West London — including Harrow, Ealing, Chiswick, Richmond, Kingston, Hammersmith & Fulham, Kensington, Acton, Hounslow, Pinner and Ruislip — and Hertfordshire, including Hemel Hempstead, Watford, St Albans, Berkhamsted, Tring and the surrounding towns. Two offices, one team.

Domestic structural work — extensions, lofts, knock-throughs, chimney breast removal, basement schemes, retaining walls, structural surveys and Party Wall coordination. We also handle commercial and renovation projects within our West London and Hertfordshire service area.

Yes. Bolt Structures Limited is a UK-registered chartered structural and civil engineering consultancy — registered with Companies House and the relevant professional bodies. Chartered status (MIStructE / MICE) sits behind every signed deliverable.

Fees are project-specific, but we publish honest ranges before any commitment. Most domestic structural designs sit in the £400–£2,500 range; surveys typically £350–£950; basements and complex projects more. The first call is always free.