Mastic sealing for building owners and managing agents in Coombe, Kent
Mastic sealing for building owners, managing agents and housing associations in Coombe and across Kent. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Failed external movement joints
- Mastic failing across several blocks on an estate
- Brittle perimeter mastic across a building
Mastic sealing near Coombe
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Mastic sealing in Coombe, done properly
Mastic Doctor has sealed joints on commercial and residential blocks since 2005. Every applicator holds a CSCS card, and the work is backed by public liability insurance. Resealed mastic joints in Coombe carry our 12-month guarantee. Most enquiries involve leaks at window and door perimeters and communal area joints that look neglected, across communal kitchens and washrooms, balcony and threshold joints and communal entrances and stairwells. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Coombe, preparation and product choice get the time they need.
Owners and agents with buildings around smaller places such as Coombe tend to manage small terraces of association properties, converted barns and commercial units. Mastic around frames and on external joints wears out in time, whatever the building.
Every job we finish is backed by a 12-month workmanship guarantee. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Where
- Coombe (CT3, CT13)
- Wider area
- Kent
- Guarantee
- A 12-month guarantee
- Price
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Updated
- 3 November 2026
What we can’t put right
We check first that sealant really is the fix. It isn’t the answer for:
- Frames that are rotten, warped or broken
- Old mastic suspected of containing asbestos, which must be tested and dealt with by a specialist first
- Masonry that has broken away beside the joint
If you’re not sure, just call the office on 01277 525 020 or email a schedule or drawings and we’ll give you a straight answer.
Where we work in Coombe
- Shopfronts below residential blocks
- Window and door perimeters on blocks
- Communal entrances and stairwells
- Communal kitchens and washrooms
- Balcony and threshold joints
- External wall and movement joints
Your questions answered
Can you work at a site such as Birnham Farm Business Centre, by Coombe?
Yes, sites like Birnham Farm Business Centre are within our area, along with the rest of Coombe. Send details of the unit and the work through our quote form for a quick quote.
Is Coombe too far out for you?
No. Small places get the same service as large ones. We work across Greater London and the South East. Where we can, we group nearby jobs to make the most of each trip.
How much does the work cost?
Every job gets its own fixed quote. For yours, ring 01277 525 020 or email the details over with a description of the work.
How do you choose the sealant?
If the job is specified, we follow the specification. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.
How do you handle work on occupied blocks?
The work is planned around occupiers. We agree the programme so you can notify occupiers and communal access is kept open.
How do we ask for a quote?
You can use the quote form on this site; alternatively, call the office on 01277 525 020 or email a schedule or drawings. Include photographs or drawings if you have them.
When is resealing likely to be due?
There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular checks let you plan resealing before leaks or damage.
What the job involves on each surface
Communal areas
Joints at low level in communal areas take knocks from bins, bikes and buggies and tend to fail first.
Estate-wide resealing programmes
An estate of similar buildings suits a rolling programme. We quote building by building and work through them in turn.
Frames, entrances and external joints in Coombe
Central London is about 62 miles from Coombe. Managed blocks of flats are a big part of commuter-belt property, and window and balcony mastic on them tends to age at the same rate. Coombe is in the South East, one of the UK’s drier regions. Outside work still depends on dry joints, and elevations facing the sun and the prevailing weather are normally where frame mastic ages first.
If you own or manage units on a site such as Birnham Farm Business Centre (0.8 miles south of Coombe), failed mastic on frames, door surrounds and external joints can be dealt with unit by unit. Site managers at schools like Ash Cartwright and Kelsey Church of England Primary School can fit frame mastic into the summer works.
Coombe is about 6 miles north-west of Deal, in Kent. Our applicators travel to Coombe for work on mastic joints. We work across 931 places in Kent. There’s a separate page for London, roughly 62 miles from Coombe.
Commercial sites across CT3 and CT13 are covered for mastic joints. Streets here include Coombe Lane, Saunders Lane and Langdon Avenue. Nearby places we also cover include Flemings (1 mile south-west), Ash (1 mile north-west), Weddington (1 mile north), Guilton (1 mile west) and Hammill Park (1 mile south) for mastic joints. Nearby towns on our patch include Canterbury (9 miles west), Margate (8 miles north-east), Dover (9 miles south), Folkestone (14 miles south-west), Ramsgate (7 miles north-east) and Broadstairs (9 miles north-east).
Near you in Coombe
In Coombe, that means premises near The Chequer Inn and Sandwich Technology School. The nearest railway station is Sandwich station, about 2.1 miles east. A little further out are White Mill (1.6 miles east). Green spaces nearby include Monk's Wall nature reserve.
Why it’s worth doing now in Coombe
Sealing over failed mastic looks tidy for a while. It doesn’t bond and usually fails within a short time. Full removal and proper preparation is what lasts. Older rural buildings around Coombe move with the seasons, and rigid or tired sealant can’t keep up. The right product, sized to the joint, copes much better.
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 are ready.
Why choose Mastic Doctor in Coombe
- Public liability insurance in place
- Fixed quotes based on photographs, drawings or a visit
- CHAS accredited contractor
- Work to your specification and the manufacturer’s guidance
Take a look at our cost guide or our accreditations and insurance.
For managing agents and facilities managers
Building owners and managing agents use us on everything from one building to a spread of sites. One quote can cover more than one site, which keeps the paperwork simple.
FMs need a contractor who is easy to get on site. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.
When to call us in Coombe
Communal entrances and corridors see a lot of wear, with joints near the floor and around doors suffering most. Regular cleaning wears them further.
Look out for the following:
- No planned programme for sealant
- Leaks at window and door perimeters
- Estate-wide sealant that is simply worn out
- Open joints in brickwork or panels
For agents with blocks near Sandwich station, 2.1 miles to the east of Coombe, a block-wide mastic programme deals with frames, balconies and entrances in one go.
Comparing quotes
- How the existing material will be dealt with
- The named product and why it was chosen
- How the joint faces will be prepared and primed
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
Nearby places to Coombe
Also in Coombe
From enquiry to sign-off
The first thing on site is a walk round with your contact, to confirm the scope, the order of work and any areas we must keep clear. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. Smaller jobs around Coombe can be grouped with others nearby. You will have a fixed quote before work starts.
- First we look at the mastic on each building and note what needs replacing.
- You get a fixed quote, priced per building where that helps your budgeting.
- Dates, areas and access are agreed so residents or tenants can be told in advance.
- Failed mastic is removed and the faces taken back to sound, dry material.
- Deep joints get backing rod, faces are primed if the manufacturer specifies it, then the joint is sealed and tooled.
- Finished joints are looked over and the 12-month guarantee confirmed.
What we need from you
- Tell staff and tenants when we’ll be in
- Send any specification or drawings in advance
- Explain the parking and delivery arrangements
Get a fixed quote
Let us know the site, the scope and your timescale, and a fixed quote will follow. The easiest way is to give us a call on 01277 525 020 or email drawings and photos.