The Mastic Doctor team standing beside their branded vans outside an office building
Greater London · England

Golders Green commercial sealant contractors

Sealant work for offices, shops, hotels and other commercial buildings across Golders Green, by CSCS-carded applicators. CHAS accredited and fully insured.

  • Black mould through washroom sealant that won’t clean off
  • Earlier reseals applied straight onto the failed bead
  • Smeared sealant across finishes from a rushed job
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
CHAS & Constructionline
£5m public liability

Commercial sealant contractors across Golders Green

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Work for main contractors and building owners

Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.

Building owners and managing agents use us on sealant work across single buildings or whole portfolios. Several sites can go on one quote, which keeps the paperwork simple.

How we handle commercial sealant contractors in Golders Green

Inside a commercial building, sealant does a lot of quiet work: around sanitaryware, along worktops and splashbacks, at window boards, partition heads and floor junctions. Outside, it closes facade joints, frame perimeters and movement joints against the weather. Our applicators work on both the inside and the outside of the building, matching the sealant to the location instead of using one product throughout. If you’re dealing with messy, uneven beads from earlier work that let the building down and expansion joints with the sealant torn out, we can put it right. A specialist sealant contractor works differently from a general builder: in Golders Green, that means joint design, primers and backing rod as standard.

On a typical commercial building in Golders Green, the joints that fail first are the hardest-worked ones: south-facing perimeters, entrance thresholds and busy washrooms.

For managing agents and FMs looking after premises in Golders Green, access is usually the first question: booked loading, goods-lift times, the permit system and a place to stage materials. With access agreed, we work through the sealant joints a section at a time, keeping disruption to tenants low.

Our 12-month guarantee is about workmanship, not wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we’re clear about what is covered before work starts.

Location
Golders Green (NW11, NW2, NW3)
Wider area
Greater London
Cover
A 12-month guarantee
Price
Quoted before any work starts
Call
01277 525 020
Page updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

When something else is needed

Being straight saves everyone time. New sealant won’t cure:

  • Walls or slabs moving more than any sealant can take
  • A failed roof covering or waterproofing membrane
  • Misted, cracked or failed glazing units (a glazier’s job)

Not sure which it is? You can call the office on 01277 525 020 or email the details over and we will tell you honestly.

Surfaces we seal

  • Washrooms and tea points
  • Window and door perimeters
  • External facade joints
  • Floor and threshold joints
  • Kitchen worktops and splashbacks
  • Movement joints in walls and floors

Our process

Before any cutting starts, the area is protected: tape along each joint edge and covers over finishes, stock and equipment close by. On site, the work normally takes part of a day on a small job and longer where several buildings or phases are involved, and our waste is bagged and taken away as we go. For a job in Golders Green, access comes first: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Give us the hours we can be on site and we will schedule to suit.

  1. Site photographs, drawings or a visit tell us what’s there and how it has failed.
  2. You get a fixed quote covering removal, preparation and the new sealant.
  3. Sequence, access and working times are settled before the first joint is touched.
  4. Each joint is stripped, cleaned back to sound faces and primed where the maker specifies.
  5. Backing goes in, the new sealant is laid and tooled, and the area is left neat.
  6. We hand back each area with its cure time and our 12-month guarantee.

Before we start on site

  • Send your site hours and access windows
  • Send asbestos survey details if the building is pre-2000
  • Point out any areas we must not close

Getting a fixed quote

We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To ask for one, call 01277 525 020 or email us.

Get a price

Advice

Aftercare for building managers

After handover, these steps help:

  • Report cracked or peeling sealant early
  • Note dates and locations of sealant work for future planning
  • Keep washroom and kitchen extraction working
  • Put external and wet-area joints on a regular inspection round

Add the resealed joints to your planned maintenance inspections. Regular checks pick up small failures before they become leaks, with external elevations and wet areas first in line. Should something look amiss, you can phone 01277 525 020 or email us and send a picture.

Once sealant fails in a movement joint, grit and debris get in. The joint can no longer close, so its edges crack or spall. At that point it’s a repair job rather than a reseal.

FAQs: Golders Green

Will you take on work at estates like Brent Cross Shopping Park, close to Golders Green?

Yes, sites like Brent Cross Shopping Park are within our area, along with the rest of Golders Green. To start, just phone 01277 525 020 or use the quote form with the unit, the joints involved and your access times.

Will our hotel in Golders Green need to close for the work?

Almost never. The work is phased so most rooms stay available. The plan is built around your bookings.

Is failed sealant stripped out, or sealed over?

The old bead is stripped out first. After that come cleaning, primer where needed, backing and the new sealant.

Do you work in Golders Green?

Yes. We cover Golders Green and the rest of Greater London, within our coverage of Greater London, South East England and Scotland. For a quote, call the office on 01277 525 020 or send details through our quote form.

How long before the joints can be used?

Curing time varies by product, and we confirm it on the day, and sign any area that should be left alone.

Are your applicators CSCS-carded?

Yes. If you need card details for site access, tell us and we will confirm them with the quote.

Do you work for facilities managers and managing agents?

Yes. Use our quote form to send the site details, or phone or email us.

What affects the price in Golders Green

Your fixed quote is built from the real scope. It takes account of:

  • Distance, for remote addresses
  • Induction, permit and paperwork requirements
  • Which sealant the job calls for
  • Access and working height

The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a quote.

Sending details for a quote

For an accurate fixed quote, we need to understand the site. Send us:

  • Asbestos survey details if the building is older
  • Anything awkward about access or site hours
  • The postcode of the building
  • Your programme or deadline

Let us know the site, the scope and your timescale, and we’ll put a fixed quote together. To get it moving, call the office on 01277 525 020 or email a schedule or drawings.

How the job changes by surface

Window and door perimeters

Inside, cracked sealant around frames and window boards is common. The product depends on whether the joint will be painted, in a shade that suits the frame.

Facade and cladding joints

On a facade, a failed joint is often only visible close up. Photos from a closer viewpoint help us price, with colours confirmed for the product chosen.

Frontages, fit-outs and joints in Golders Green

Contractor rules in London buildings can be strict, with inductions, permits and timed loading all normal. We work within them, one zone at a time. A 2-mile radius around Golders Green takes in plenty of hotels. In hotels, sealant shows everywhere, from bathroom joints to reception counters, so colour and a clean finish matter, and the work can be phased so the rest of the hotel keeps trading.

In a retail centre such as Brent Cross Shopping Centre, 1.1 miles west of Golders Green, new tenants mean new shop fits, and the sealant at counters, frontages and floor edges is part of the finish. Sites a few miles apart, such as Brent Cross Shopping Park and Silk Bridge Retail Park, can share one programme and one point of contact. Refits at hotels like OYO Central Hotel Golders Green, less than half a mile to the north of Golders Green, bring joints at vanity tops, bars and reception desks that guests see every day.

Golders Green is about 1 mile north of West Hampstead, in Greater London. We cover commercial sites throughout Golders Green, for single jobs and planned programmes alike. Across Greater London, 764 places are covered, including Golders Green. Sites around London have their own page, roughly 7 miles from Golders Green.

Commercial sites across NW11, NW2 and NW3 are covered. Buildings on Nant Road, Hoop Lane and Park Avenue are within our area. If your building is just outside Golders Green, we cover Temple Fortune (1 mile north), Childs Hill (1 mile south), North End (1 mile south-east), Hampstead Garden Suburb (1 mile north-east) and Vale of Health (1 mile south-east). A short drive away, we cover London (7 miles south-east), City of Westminster (5 miles south-east), Marylebone (4 miles south-east), Kensington (5 miles south), St Pancras (5 miles south-east) and Shoreditch (6 miles south-east).

Near you in Golders Green

Around Golders Green, our work takes us to commercial buildings near Childs Hill Park, The King Alfred School and The Old Bull and Bush pub, among other places. The closest station to Golders Green is Cricklewood station, about 1.2 miles south-west of the centre. Other landmarks nearby include Kenwood House (1.3 miles east) and Brent Cross Shopping Centre (1.1 miles west). Open spaces near Golders Green include Parliament Hill and Darland's Lake.

Map of Golders Green © OpenStreetMap contributors
Accreditations

Trusted. Accredited. Insured.