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Construction companies in the United Kingdom ›

Construction companies in Harrow

3,001 active construction companies have their registered office in Harrow, according to Companies House. Below you can see what they do, with the official details for each company. Building firms are a favourite cover for fraud: large deposits, many subcontractors and money that moves before the work is visible. 727 of them (24%) are less than two years old. 193 have been around for more than twenty years.

What they do

Development of building projects733
Construction of domestic buildings435
Construction of commercial buildings404
Other specialised construction activities n.e.c.289
Other building completion and finishing257
Electrical installation213
Plumbing, heat and air-conditioning installation165
Other construction installation135
Construction of other civil engineering projects n.e.c.78
Painting61
Roofing activities47
Joinery installation39
Floor and wall covering31
Plastering24
Glazing21

Construction companies in Harrow

Development of building projects (733)

and 693 more

Construction of domestic buildings (435)

and 395 more

Construction of commercial buildings (404)

and 364 more

Other specialised construction activities n.e.c. (289)

and 249 more

Other building completion and finishing (257)

and 217 more

Electrical installation (213)

and 173 more

Plumbing, heat and air-conditioning installation (165)

and 125 more

Other construction installation (135)

and 95 more

Checking a construction company in Harrow

  1. Check that the company number on the quote matches Companies House and that the company is active, not dissolved or in liquidation.
  2. Never pay a large deposit up front. Pay in stages, against work you can see.
  3. Ask for proof of public liability insurance and check the policy with the insurer, not via the builder.
  4. Check who the directors are and how long the company has existed: a firm set up a few months ago with a big project is a warning sign.
  5. If bank details change by email, call the company on a number you look up yourself before paying.

Check a VAT number Check an IBAN Check a phone number

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How many construction companies are there in Harrow?

According to Companies House, 3,001 active construction companies have their registered office in Harrow.

How do I check a builder in Harrow?

Look the company up at Companies House or on this page, check that it is active, compare the company number with the quote and pay in stages. SafetyBizz checks register, domain, phone number and bank account in one scan.

What are the warning signs of a rogue builder?

Pressure to decide today, a large cash deposit, no written quote, a very young company and bank details that do not match the company name.

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