Mastic Sealing in Dunton Green
Mastic sealing for building owners, managing agents and housing associations throughout Dunton Green and nearby, carried out by CSCS-carded applicators. CHAS accredited and fully insured.
- Complaints coming in block by block
- Estate-wide sealant that is simply worn out
- Occupiers reporting cold air round windows
Mastic sealing for businesses in Dunton Green
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
What happens if it’s left?
Draughts round window perimeters cost occupiers comfort and the windows normally get the blame. In many cases, new perimeter sealant deals with it where the frames themselves are sound. Older rural buildings around Dunton Green move with the seasons, and rigid or tired sealant can’t keep up. A sealant with the right movement capability, correctly sized, lasts far better.
The product called for affects the cost, as does the preparation each joint needs. Access, phasing and site rules also count.
Why us?
- Over 20 years of commercial sealing
- Fixed quotes based on photos, drawings or a visit
- Old sealant cut out, never sealed over
- Public liability insurance in place
Read how commercial sealant jobs are priced and how we’re accredited.
Mastic sealing in Dunton Green, done properly
Before work starts, most agents and landlords want the documents in order. Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote. We are a Constructionline member and CHAS accredited, and we carry public liability insurance. We work on shopfronts below residential blocks, window and door perimeters on blocks and communal entrances and stairwells, and the failures we’re asked to look at most are movement joints with sealant missing and the same joint failures repeated across a portfolio. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Dunton Green is the same: the right product in a properly prepared joint.
Rural conversions near places like Dunton Green often set modern frames into older stone, flint or brick. Perimeter mastic there has to grip an uneven face and suit the building’s character.
We stand behind the joints we seal: 12 months, guaranteed. It covers how we prepared and applied the sealant, and if something we did falls short, we return to it.
- Place
- Dunton Green (TN13, TN14)
- Wider area
- Kent
- Cover
- A 12-month guarantee
- Quotes
- Quoted before any work starts
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Nearby places to Dunton Green
Also in Dunton Green
What we are called out for in Dunton Green
Topping up old mastic is a common shortcut. New sealant won’t grip failed sealant, so these repairs rarely last.
Clients normally get in touch after noticing something like this:
- Draught complaints from residents or tenants
- Brittle perimeter mastic across a building
- No planned programme for sealant
- A mix of products and colours from past repairs
Site managers at schools like Dunton Green Primary School can fit frame mastic into the summer works.
Comparing quotes
- Whether their applicators hold CSCS cards
- Whether old or failed sealant will be cut out, not overlaid
- Whether primer will be used where the manufacturer specifies it
- The named product and why it was chosen
When it isn’t the sealant
Our job is the joint, not everything around it. Sealant alone won’t deal with:
- Roof leaks, gutters or failed flashings that aren’t sealant joints
- Broken glass or failed sealed units
- Asbestos-containing sealant, which we don’t remove
Not sure which it is? You can give us a call on 01277 525 020 or email drawings and photos and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Communal kitchens and washrooms
- External wall and movement joints
- Balcony and threshold joints
- Shopfronts below residential blocks
- Window and door perimeters on blocks
- Communal entrances and stairwells
For managing agents and facilities managers
If you look after buildings for someone else, you need clear quotes and clear reporting. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative, plus a 12-month guarantee.
Building owners and managing agents use us on sealant work across single buildings or whole portfolios. Several sites can go on one quote, so there’s one set of paperwork to deal with.
How the quote is worked out
Each job is priced on its own details. The main factors are:
- Whether old sealant has to be cut out first
- Site requirements such as inductions and permits
- Whether the work must be split into stages
- Which sealant the job calls for
Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.
Sending details for a quote
There’s no need for a formal survey. These details are enough to start:
- Any dates the work must fit around
- The site address and postcode
- The product your specification calls for
- Anything awkward about access or site hours
Quotes are fixed against the scope you send, so the cost is agreed before work starts. To ask for one, call the office on 01277 525 020 or send photos by email.
Mastic sealing in Dunton Green: the local picture
Central London is about 18 miles from Dunton Green. Within reach of London, blocks run by agents and associations are common around stations. Dunton Green sits in one of the drier corners of the country, the South East. External mastic still waits for dry faces and the right temperature, and elevations facing the sun and the prevailing weather are usually where frame mastic ages first.
For agents with blocks near Dunton Green station (under half a mile north-east of Dunton Green), a block-wide mastic programme deals with frames, balconies and entrances in one go. Property owners at sites such as Sevenoaks Business Centre (to the east of Dunton Green) can have mastic renewed between lettings.
Dunton Green is about 1 mile north-west of Sevenoaks, in Kent. We cover commercial sites throughout Dunton Green, for single jobs and planned programmes alike. Our Kent coverage takes in 931 places. We also cover London, some 18 miles away.
Anyone looking for mastic sealing in TN13 and TN14 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. Streets here include Station Road, Campion Square and London Road, and sites on any of them can send details for a fixed quote. We also cover Riverhead (1 mile south), Chipstead (1 mile south-west), Bessels Green (1 mile south-west), Sevenoaks (1 mile south-east) and Chevening (2 miles west). A short drive away, we cover Dartford (11 miles north), Royal Tunbridge Wells (12 miles south), Gravesend (13 miles north-east), Tonbridge (8 miles south-east), Northfleet (12 miles north-east) and Swanley (7 miles north).
Near you in Dunton Green
Recent enquiries here include premises near Montreal Park, The Miners Arms and Trinity School, among other places. Dunton Green has its own railway station: Dunton Green station. A little further out are Otford Heritage Centre (1.5 miles north-east) and Kemsing Castle Bank (2.8 miles east). For a walk, there’s Dryhill Nature Reserve and Betsom's Hill.
How a job runs
We follow your site rules from the start: sign-in, induction and whatever permit system the building uses. Once we are cleared to begin, the joints are worked through in the order agreed with your site contact. For work around Dunton Green, we aim to finish in one visit, so we ask for photographs and rough sizes first. That way the right products come on the day.
- We check the asbestos register for older buildings and look at the joints.
- The products and programme are set out in a fixed quote.
- Failed mastic is removed completely.
- Joint faces are cleaned, backed and resealed.
- We finish each building before moving to the next.
Before we start on site
- Explain the parking and delivery arrangements
- For older buildings, check the asbestos register before work
- Have the specification and drawings to hand
Quotes
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. The easiest way is to give us a call on 01277 525 020 or email drawings and photos.
Read more
Questions we’re asked in Dunton Green
Do you work for managing agents with blocks near Dunton Green station?
Yes. Blocks of any size are within what we do. Send the address, photos of the elevations and your access arrangements, and we will give a fixed quote.
Is Dunton Green off your patch?
No. Places such as Dunton Green are covered as much as the big towns. Our area covers London and the South East counties. Good photos up front let us bring everything on the first visit.
Do you do block-wide mastic programmes?
Yes, planned programmes suit estates and portfolios. The quote can be split however suits your budgeting.
What guarantee do you give on resealing?
Our workmanship carries a 12-month guarantee, backed by public liability insurance.
How long does a typical visit take?
That varies with the scale of the job, but the work usually takes anything from a day to a few weeks, depending on the number of buildings and joints. For bigger or phased jobs, we’ll set out a timescale with the quote.
Do you work for managing agents and housing associations?
Yes, that’s exactly who this service is for. Buildings are scheduled in turn with dates agreed in advance.
Can you seal joints high up on a block?
It depends on the building. How upper joints are reached is agreed before work is booked so the fixed quote reflects it.