Facade Sealing contractors in Dollis Hill
Facade joint and window perimeter sealing on commercial buildings in Dollis Hill and across Greater London. CHAS accredited and fully insured, with a 12-month guarantee.
- Air leaks through failed facade joints
- Unsightly perimeter sealant on a visible elevation
- Perimeter sealant that has split or peeled away
Facade sealing for businesses in Dollis Hill
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Common problems we fix in Dollis Hill
A frequent fault is a bead stuck to the joint’s rear face as well as its sides. Without rod or bond-breaker tape, the bead is held back and rips when the facade moves.
Any of the following is a good reason to get the joints checked over:
- Hard, chalky sealant that no longer flexes
- Patch repairs that keep failing
- Staining on stone next to old sealant
- Damp patches beside frames after rain
University estates such as Middlesex University, 2.2 miles north of Dollis Hill, tend to have a rolling programme of new buildings and refurbishments, each with window perimeters and facade joints to seal.
Questions to ask before you book
- Will failed sealant be removed rather than covered?
- Are they CHAS accredited or on Constructionline?
- Is the sealant right for the movement and the substrate?
- Proof of insurance
How we handle facade sealing in Dollis Hill
Every facade quote starts with how the joints will be reached. Tell us about access: whether scaffold is already up, what the client is arranging, and any restrictions on the site. If you are dealing with failed seals around shopfront and entrance frames and hard, chalky sealant that no longer flexes, we can help, whatever the surface. Most enquiries from Dollis Hill start with one failed joint and grow into a wider look at the building: we look at the rest while we are there and tell you what we find.
Construction in a London area such as Dollis Hill means working on constrained sites: limited storage, booked deliveries and access shared with other trades. Mastic is usually one of the last trades on each elevation or floor, so we keep to the programme and the order of trades the site sets.
The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we spell out the cover before we begin.
- Place
- Dollis Hill (NW2, NW10, NW9)
- Wider area
- Greater London
- Guarantee
- 12 months on every job
- Quotes
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Page updated
- 3 November 2026
On site: what to expect
On arrival, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before any cutting starts, with the work itself usually taking a day or two for a few elevations, and longer where access has to be moved around the building. The ULEZ covers the whole of Greater London, and parking near a job is rarely simple. If there’s a loading bay, a car park or a permit we can use, tell us when you send details.
- Photos, drawings or a visit tell us about the joints and the access.
- Product choice follows the joint’s movement and substrate.
- Failed beads are removed in full.
- Primer goes on where the product data asks for it.
- Backing rod is fitted and the new sealant gunned in and tooled.
- We go over the completed work with you before leaving.
Preparing the site
- Warn occupants and staff about the work
- Tell us which areas need to stay in use
- Have the specification and drawings to hand
Request a quote
Need a figure for a tender or a budget? We’ll quote against your scope and drawings you can plan around. For a chat about it beforehand, call the office on 01277 525 020 or send photos by email.
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When it isn’t the sealant
Our job is the joint, not everything around it. On its own, sealant can’t deal with:
- Damaged frames that need replacing
- Replacing glass or failed glazing units
- Specialist high-level access methods
If you are not sure, just call the office on 01277 525 020 or send photos by email and we’ll give you a straight answer.
Surfaces we seal
- Shopfront frames
- Coping and flashing joints
- Perimeter joints where frames meet the structure
- Stone and brick facade joints
- Window and door perimeters
- Cladding panel joints
What happens if it’s left?
The longer a failed joint is left, the more the substrate suffers: wet edges break down, so repairs may be needed before resealing. Early action keeps it simple. Getting scaffold, permits or access booked in Dollis Hill takes effort, so it makes sense to deal with every failing joint while access is in place.
The specified product makes a difference, as does the preparation each joint needs, such as cutting out, priming or new backing rod. Access, phasing and site requirements come into it too.
Why us?
- One number for every site we cover
- Colours chosen to suit frames, cladding or finishes where possible
- Public liability insurance in place
- Colours confirmed for the specified product
See what affects the cost and our accreditations.
Mastic packages on Dollis Hill sites
The area within 2 miles of Dollis Hill holds a good number of hotels. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up. Every borough of Greater London is inside the ULEZ, and that applies to contractors’ vehicles on any job in Dollis Hill. Add booked deliveries and tight storage, and the mastic package needs planning with the site team.
On a healthcare site such as BMI Hendon Hospital, 2.1 miles to the north of Dollis Hill, new blocks and refurbishments go on while the hospital keeps running, so mastic work is sequenced carefully. Projects at colleges like College of North West London (to the south-west of Dollis Hill) tend to run to term dates, so the mastic is planned tightly.
Dollis Hill is about 1 mile north-east of Neasden, in Greater London. Anywhere in NW2, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. Dollis Hill is one of 764 places we cover in Greater London for facade joints. London is covered too, some 7 miles away.
Anyone looking for facade sealing in NW2, NW10 and NW9 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. For a building on Brook Road, Lane Close and Crest Road or nearby, we can quote for facade joints. Just outside Dollis Hill, we also work in Staples Corner (1 mile north-east), Neasden (1 mile south-west), Cricklewood (1 mile south-east), Willesden (1 mile south) and Brent Cross (1 mile north-east). Further afield, our area takes in London (7 miles south-east), City of Westminster (5 miles south-east), Marylebone (5 miles south-east), Kensington (5 miles south), St Pancras (6 miles south-east) and Shoreditch (7 miles east).
What’s near Dollis Hill
In Dollis Hill, that means premises near Woodfield School, The Crown Public House and Gladstone Park and the streets around them. There’s a railway station in Dollis Hill itself: Brent Cross West station. Other landmarks nearby include Brent Cross Shopping Centre (1 mile north-east) and St Andrew's Hospital (less than half a mile south). The countryside around Dollis Hill includes Darland's Lake and Parliament Hill.
What affects the price in Dollis Hill
To price the job, we consider:
- How much there is to seal
- Site requirements such as inductions and permits
- Which sealant the job calls for
- Distance, for remote addresses
The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a quote.
Details that help us quote
Diagnosis starts before we arrive. Let us know:
- The asbestos register, for older buildings
- When you need the work done
- The type of building and who uses it
- Anything awkward about access or site hours
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, call 01277 525 020 or email the details over.
For managing agents and facilities managers
Building owners and managing agents use us on sealant work across single buildings or whole portfolios around Dollis Hill. Several sites can go on one quote, so there’s one set of paperwork to deal with.
As a CHAS accredited contractor and Constructionline member, we are straightforward to vet for your supplier list. We are fully insured, and our insurance certificate can go with the quote.
Questions about Dollis Hill
Can you take on a job at a hospital such as BMI Hendon Hospital?
Yes, healthcare and care buildings are part of our work. We follow the site’s permits, sign-in and infection-control procedures in every area.
Does your area include sites such as Brent Cross Shopping Park, near Dollis Hill?
Yes. We cover Dollis Hill and the area around it, including industrial estates, business parks and retail parks such as Brent Cross Shopping Park. Send details of the unit and the work through our quote form for a quick quote.
Are your applicators CSCS-carded?
Yes. Our applicators hold CSCS cards, as many construction sites ask for.
When is resealing likely to be due?
Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.
Can you work to our specification?
Yes. The specification and the manufacturer’s installation guidance are what we work to, and we raise anything unclear before work begins.
Do you cover Dollis Hill?
Yes. We take on work across Dollis Hill, and the same phone number covers every area.
Can the sealant be colour-matched?
In many cases, yes. Sealants are made in a wide range of standard colours, and matching to RAL references or nearby finishes is commonly requested. We’ll confirm the colours available for the specified product.