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Extensions, basements, loft conversions and refurbishment across London
Key facts
- Trading name
- Redline Building Services
- Registered company
- REDLINE BUILDING SERVICES LIMITED
- Company number
- 07992248 (Companies House, status Active, checked 24 October 2026)
- Established
- 2012
- Registered office
- 95 Mortimer Street, London, W1W 7GB
- Areas covered
- London, Surrey
- Registration
- Companies House lists Redline Building Services Limited, company number 07992248, incorporated 15 March 2012, status active, SIC 41202 (construction of domestic buildings). The website shows the same company number and registered office. Checked 7 October 2026. This listing was built from public sources; it has not yet been claimed by a director or from the business's own email address.
- Services
- Home extensions, Basement conversions, Loft conversions, Kitchen renovation and refurbishment, New builds, Design and build, Commercial refurbishment and office fit-outs
- Phone
- 020 7183 1053
- Website
- redlinebuilding.co.uk
- Listing status
- Unclaimed. Compiled from public information and not yet verified by the business
- Listing last updated
- 24 October 2026
What Whito has checked
- Listed: yes. Public entry since 7 October 2026
- Companies House matched: yes. Company 07992248, Active, read 24 October 2026
- Claimed: no. Not claimed by the business
- Verified: no. Not yet: needs a claim, then Whito’s identity and contact checks
- Regulator checked: no. No regulator register read by Whito
- Company record
- Companies House shows Active for company 07992248, read on 24 October 2026. See the register entry
- Regulator register
- No regulator or scheme registration is recorded on this listing.
- Listing ownership
- Unclaimed. Whito built this listing from public sources. The business has not claimed it. Run this business? Claim it free
- Website check
- 82 out of 100 on the Whito Visibility Check of redlinebuilding.co.uk, run on 25 October 2026. That is higher than 67% of the 12 builders in this directory whose websites were checked the same way (equal scores do not count as higher). Biggest gaps: company number on the site, signs of fresh content, linked profiles (sameAs). Run the check again, free The score measures how easily people and AI assistants can read and trust the website, across 17 checks such as a secure connection, a visible company number and address, and structured data. It is not a rating of the business or its work. Run this business and want the score removed? Email hello@whito.co.uk.
- AI answers
- No AI answers recorded for this business yet. Whito’s AI studies cover selected trades and towns, so no record does not mean AI assistants never name it. Want this tracked every month? Visibility Monitor, £280 a month. Paying never changes this listing.
Each line means only what it says. Listed, matched, claimed, verified and regulator checked are separate states, and none of them is a recommendation. How Whito collects its data
About Redline Building Services
Redline Building Services is a London builder working on residential and commercial projects, from extensions and basements to full refurbishments and office fit-outs.
The website names West, North and South West London as its main areas, including Chelsea, Fulham, Hampstead, Islington, Kensington and Wimbledon.
What to check before you book
This listing is compiled from public sources, so confirm these directly with the business before any work starts.
- Look for membership of a recognised body such as the Federation of Master Builders (FMB) or TrustMark, and ask whether the work comes with an insurance-backed guarantee or warranty.
- Get the quote in writing, and ask whether it includes parts, certification and VAT.
- Ask for proof of public liability insurance before work begins.
- For an extension, structural work or anything affecting drains, confirm whether Building Regulations approval is needed and ask for the Building Control completion certificate at the end.
Common questions
What areas does Redline Building Services cover?
Redline Building Services covers London, Surrey.
Is Redline Building Services registered?
Whito records: Companies House lists Redline Building Services Limited, company number 07992248, incorporated 15 March 2012, status active, SIC 41202 (construction of domestic buildings). The website shows the same company number and registered office. Checked 7 October 2026. This listing was built from public sources; it has not yet been claimed by a director or from the business's own email address. Registration can change, so confirm the current registration number with the relevant scheme before you book.
Is this listing verified by Whito?
Not yet. This listing is marked Unclaimed: Whito compiled it from public information and the business has not claimed it. Any Companies House or regulator check on this page is dated and stands on its own. When a business claims its listing it is marked Claimed, and Whito marks it Verified only after confirming its identity and a working contact. Whito does not publish invented reviews or star ratings.
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Claim Redline Building ServicesThis listing was compiled by Whito from public information, including the business website and, where applicable, the Companies House register. It is not a recommendation or an endorsement. Always carry out your own checks before hiring. If you run this business and want the listing corrected or removed, use the claim link above.
Product and company names shown on this listing may be the trademarks of their respective owners. A Whito listing does not imply any affiliation with, or endorsement by, them.
