Edgware mastic sealing
Planning work on a mastic joint in Edgware? We assess it, carry out the work and guarantee our workmanship for 12 months.
- Draughts at frames across a block
- No planned programme for sealant
- A mix of products and colours from past repairs
Need mastic sealing in Edgware?
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
About our mastic sealing in Edgware
Mastic Doctor has sealed joints on commercial and residential blocks since 2005. Our applicators are CSCS-carded, and the work is backed by public liability insurance. Each building we complete carries a 12-month guarantee on our workmanship. If you have damaged joints in communal entrances and corridors and the same joint failures repeated across a portfolio, we can put it right. Searching for sealant specialists in Edgware? We have been sealing commercial buildings since 2005, CHAS accredited and a Constructionline member.
London’s ULEZ covers every borough, and parking and loading rules vary street by street. For a block or estate, it helps to know where we can park and stage materials.
Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and the quote explains what it covers.
- Location
- Edgware (HA8, NW7, HA7)
- Wider area
- Greater London
- Guarantee
- 12 months on our workmanship
- Quote
- Quoted before any work starts
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Common questions from Edgware clients
Do you take on jobs in Edgware where loading and access are tightly controlled?
Yes. Inductions, permits and timed loading are routine for us in London. Share the building’s contractor rules and we’ll work to them.
Can you quote for a block close to Mill Hill Broadway station?
Yes. Blocks of any size are within what we do. We work to your notice and access arrangements.
How long before the joints can be used?
That comes down to the sealant and the temperature. Some take light use quickly, others need longer to cure, and we confirm it before leaving site.
Does weather matter for sealant work?
It can, when the joints are outside. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Internal work is far less affected.
How long will the new sealant last?
It depends on movement, UV and weather, cleaning, traffic and the product. Sealant joints are maintenance items, so inspect them regularly.
Can you follow the specification on our project?
Yes. The specification and the manufacturer’s installation guidance are what we work to.
Can you take on resealing for a block portfolio?
Yes, block and estate work is a core part of what we do. Buildings are scheduled in turn so you can plan around it.
Building owners, agents and FMs in Edgware
We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Edgware can form part of a wider programme.
For main contractors, we work as the sealant subcontractor on new-build and refurbishment projects. We work to your programme, your specification and your site rules.
Nearby places to Edgware
More services for Edgware
Doing it in-house
General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.
Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we will confirm the paperwork you need with the quote.
Different surfaces, different methods
Window and door perimeters on blocks
On most blocks, the frame-to-wall joint is where failure shows first. We remove the failed mastic, prepare the faces, add backing rod if the joint is deep and reseal.
Tenement and older buildings
Traditional buildings have joints that need a careful approach. We look at the substrate before choosing a sealant.
Mastic sealing in Edgware: the local picture
Two care or nursing homes sit less than 2 miles from Edgware. Frame mastic on care buildings is best renewed elevation by elevation, with the manager deciding timings. Blocks in London are normally run by managing agents, landlords or housing associations, with residents to notify and access to arrange. Our programme follows the access you agree with residents.
Schools and community buildings such as Beit Shvidler Primary School need frame and external mastic kept sound like any building. Student blocks close to universities like Middlesex University, 2 miles south-east of Edgware, are easiest to work on between tenancies. If you are responsible for a building such as St Andrew, frame and door mastic needs the same attention as any other property.
Edgware is about 4 miles west of Finchley, in Greater London. Across the HA8 postcode area, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. Across Greater London, 764 places are covered, Edgware among them. We also cover London, around 11 miles from Edgware.
Postcode districts covered here: HA8, NW7 and HA7 for mastic joints. Among the streets we cover are Station Road, Edgware Road High Street and Hillcrest Avenue, and sites on any of them can send details for a fixed quote. Access to Edgware is via the A5100 among other routes, so getting applicators and materials to site is simple. Just outside Edgware, we also work in The Hale (1 mile east), Broadfields Estate (1 mile north), Burnt Oak (1 mile south-east), Canons Park (1 mile south-west) and Little Stanmore (1 mile south-west). Further afield, our area takes in London (11 miles south-east), City of Westminster (9 miles south-east), Marylebone (9 miles south-east), Kensington (9 miles south), St Pancras (9 miles south-east) and Shoreditch (10 miles south-east).
Landmarks near Edgware
Locally, jobs take us to sites close to The Northgate School, Railway Hotel and London Academy and the streets around them. The nearest railway station is Mill Hill Broadway station, about 1.1 miles south-east of the centre. Nearby you’ll also find Hilfield Castle (3.6 miles north-west) and Broadwalk Centre (0.5 miles south-west). For a walk, there’s Darland's Lake and Mill Hill Old Railway Nature Reserve.
Our process
Where the site stays busy, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed, then handed back before we move to the next. 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.
- A building-by-building inspection lists the failed joints.
- The quote is fixed and split as suits you.
- We agree the programme and dates with you.
- Old mastic is removed and the joint faces prepared.
- Joints are resealed and tooled.
- Each building is checked and signed off with the 12-month guarantee.
Before we start on site
- Make sure the joints can be reached
- Tell us your opening times and when work is allowed
- Agree which areas must stay open
Quotes
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, ring 01277 525 020 or email a schedule or drawings.
Advice
Why it’s worth doing now in Edgware
Adding sealant to cyclical maintenance is an easy win. Leaving it until there’s a leak turns it into reactive work with less control over timing. Getting scaffold, permits or access booked in Edgware takes effort, so while access is arranged it pays to renew all failing joints, not just the worst.
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 fixed quote.
Why us?
- Colour agreed before work starts
- A Constructionline member, so easy to vet
- 12 months’ guarantee on every job
- CSCS-carded applicators
Read how commercial sealant jobs are priced and our accreditations and insurance.
What sets the cost
Each job is priced on its own details. The things that drive the figure:
- How much existing material needs removing
- Joint width, depth and condition
- Working within restricted access windows
- Specialist products, such as fire-rated or hygienic sealants
Access can matter as much as the joints themselves: joints within easy reach take less time than ones that need access equipment. Mention the access as part of your enquiry.
Sending details for a quote
Good information means a firmer quote. Helpful details to send:
- Whether the building will be occupied during the work
- The asbestos register, for older buildings
- Drawings or a marked-up plan, if available
- The postcode of the building
For a fixed quote, phone 01277 525 020 or email us, telling us the site location and the nature of the job. Our quote form is another easy route.