Greater London · England
Commercial sealant contractors in N11
Commercial sealant, construction mastic and joint sealing across N11, covering Friern Barnet, New Southgate and Arnos Grove, with a fixed quote before we start.
Sealant work in N11
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Areas within N11
- Friern Barnet
- New Southgate
- Arnos Grove
- Brunswick Park
- Barnet
- Palmers Green
- Whetstone
- Southgate
- Bowes Park
- Bounds Green
- Oakthorpe Park
- North Finchley
- Osidge
Our services across N11
- Facade and window perimeter sealing
- Commercial sealant contractors
- Commercial washroom and wet-area sealing
- Industrial and floor joint sealing
- Mastic sealing for building owners and managing agents
- Coloured and colour-matched sealant
- Expansion and movement joint sealing
- Fire-rated sealing and fire stopping
- Construction and new-build mastic
- Every service
Tell us what needs doing and your postcode and we’ll come back with a price: give us a call on 01277 525 020 or email drawings and photos.
How commercial sealant contractors works in N11
Mastic Doctor has been sealing joints for businesses and contractors since 2005, and the documents buyers ask for are ready: we are CHAS accredited and a Constructionline member, our applicators hold CSCS cards, and we carry five million pounds of public liability insurance. If your site needs RAMS, an insurance certificate or CSCS details, say so and we’ll confirm with the quote. Site teams most often ask us about movement joints packed with grit and debris and weathered facade sealant that no longer flexes, on movement joints in walls and floors, window and door perimeters and washrooms and tea points.
We schedule the visit to fit the site hours and access windows you give us. While we are working, the area stays contained and tidy, and your contact hears from us before we move to the next area.
- We begin with whatever information you have, whether that’s photos, a drawing or a list of locations.
- Next comes a diagnosis and a fixed quote.
- Before anything is cut out, we agree access, timings and sequence.
- The failed bead is removed and the joint faces cleaned until they’re sound and dry.
- We fit backing to the right depth, prime where specified and lay the new bead.
- Finished joints are checked with you and handed over with our 12-month guarantee.
How we quote
What a job costs comes down to how many linear metres there are, how much old material needs removing and how the joints are reached. Call for a fixed quote when you’re ready.
Why clients in N11 choose us
- Our applicators hold CSCS cards
- Over 20 years of commercial sealing
- Standard and matched colours in many product ranges
- Products installed to the manufacturer’s instructions
Request a 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 the office on 01277 525 020 or email us.
Landmarks near Friern Barnet
We work on buildings around Friary Park, St John's Church and Woodhouse College. Also close by are Holly Park Primary School (less than half a mile north), Francis Skaryna Belarusian Library and Museum (1.4 miles west) and Friern Barnet School (less than half a mile north). Friern Barnet has its own railway station: New Southgate station. Other landmarks nearby include Francis Skaryna Belarusian Library and Museum (1.4 miles west) and Grand Arcade (1 mile west). The countryside around Friern Barnet includes Highgate Hill and Darland's Lake.
Where commercial joints are in N11
Across N11, from Barnet, Palmers Green and Whetstone to the smaller places between, commercial buildings run from high-street shops and offices to hotels, schools and business parks. We cover the whole area, so occupiers with several sites can use one contractor and one point of contact.
The South East has large numbers of business parks and industrial estates, especially around the motorway corridors, and N11 is part of the area we cover.
Friern Barnet: Shops and cafés around stations like New Southgate station, under half a mile to the east of Friern Barnet, trade from early, so work is timed around them. Occupiers with premises at both Friern Bridge Retail Park and Brunswick Industrial Estate could have the sealant at each handled under one quote.
Looking after the joints
Cleaning and maintenance staff play a part too. Share these points with them:
- Check joints after other trades have worked nearby
- Note dates and locations of sealant work for future planning
- Report cracked or peeling sealant early
- Check the asbestos register before anyone disturbs old sealant in an older building
New joints need their full cure time before they take water, cleaning or traffic. Cure time varies with the product, conditions and depth of the joint. Keeping signs or barriers up until then protects the finish.
Sealant rarely fails all at once across a building. The first failures are often a warning about the rest so the whole run is worth inspecting. We’ll tell you which sealant joints need doing first and which can wait.
Quoting for work in N11
To price the job, we consider:
- How accessible the joints are
- Which sealant the job calls for
- Distance, for remote addresses
- The site’s rules and procedures
Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote, and you’ll have a fixed figure to work with.
What we need to price the job
A few photos plus some basic facts will normally do. It helps to include:
- Clear photos of the problem areas
- Access details, including height
- Drawings or a marked-up plan, if available
- The site address and postcode
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote that you can work with. If you have questions first, give us a call on 01277 525 020 or email us.
Honest limits
A few problems need another trade or a different fix, and we say so rather than covering them up:
- Misted, cracked or failed glazing units (a glazier’s job)
- Structural cracks or movement the joints weren’t designed for
- Old mastic that tests positive for asbestos
Commercial clients in N11
Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, and each stage is agreed with your contact.
We work for building owners and managing agents on sealant work across single buildings or whole portfolios. Several sites can go on one quote, which keeps the paperwork simple.
Different surfaces, different methods
Fire-rated seals where specified
Fire-rated sealant is only one type of fire-stopping product. Other products, such as collars, wraps and batts, are specified for different services, so we will flag it if the detail needs a different product.
Window and door perimeters
The perimeter joint between a frame and the structure keeps rain out of the reveal. We remove the old seal, prepare the faces, fit backing where needed and seal again with a product chosen for both the frame and the wall.
Common questions from N11 clients
Could the old sealant in an older building contain asbestos?
It can, on some older buildings. That’s why we ask for the asbestos information first, and stop if a material is suspect until it’s tested.
Can you take on work for an FM or managing agent?
Yes. Use our quote form to send the site details, or phone or email us, and we will confirm any paperwork you need with the quote.
How do we get a quote?
Send photographs, drawings or a list of locations through our quote form. If a visit is needed we will book one, and a fixed quote follows.
When is resealing likely to be due?
There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Treat them as maintenance items and inspect them regularly.
Does the weather affect the work?
It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so we watch the forecast and rearrange outside work if we have to. Internal work is far less affected.
Are you CHAS accredited?
Yes. CHAS accredited, Constructionline member, and our applicators hold CSCS cards.
Can you supply RAMS and insurance details?
The paperwork is agreed with the quote: most clients ask for RAMS, our insurance certificate and CSCS details. Our applicators are CSCS-carded.