Mastic sealant contractors in Kemsley
Looking for mastic sealing in Kemsley? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.
- Movement joints with sealant missing
- The same joint failures repeated across a portfolio
- Leaks at window and door perimeters
Mastic sealing in Kemsley
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
FAQs: Kemsley
Do you cover business parks and estates near Kemsley, such as Newington Enterprise Centre?
Yes, sites like Newington Enterprise Centre are within our area, along with the rest of Kemsley. Send details of the unit and the work through our quote form for a quick quote.
Is Kemsley off your patch?
No. Small places get the same service as large ones. We cover Greater London and the counties of the South East. Send photographs and a list of what needs doing, and we’ll plan the job to need as few trips as possible.
Does the weather affect the work?
For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so damp, frosty or very cold days can stop external work. Inside work is seldom held up.
Do you supply RAMS and insurance details?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote. We hold CHAS accreditation and Constructionline membership.
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.
How soon can the area be used again?
That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.
Do you seal on top of existing sealant?
No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.
Mastic sealing for commercial buildings in Kemsley
Managing agents and housing associations typically need paperwork before anyone starts. Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote. We are CHAS accredited and a Constructionline member, with public liability insurance. We work on communal entrances and stairwells, shopfronts below residential blocks and communal kitchens and washrooms, and the failures we’re asked to look at most are draught complaints from residents or tenants and no planned programme for sealant. Facilities teams, main contractors and managing agents in Kemsley tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.
Converted and older buildings in and around Kemsley often put modern windows into old walls. Perimeter joints need a sealant that suits both frame and masonry.
Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.
- Location
- Kemsley (ME10, ME9)
- Region
- Kent
- Cover
- A 12-month guarantee
- Quotes
- Quoted before any work starts
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
Also near Kemsley
Other services in Kemsley
Our process
Occupied buildings need a little choreography. The work area is signed and kept contained, keep walkways clear and move on in phases so staff and visitors can carry on around us. Several jobs near Kemsley can be grouped on one trip. Mention the building’s opening times and we will work within them.
- Each block or building is walked and the failed joints recorded with the likely cause.
- We send a fixed quote that sets out the joints, the products and the programme.
- The programme is fixed with you, including dates you can pass on to residents or tenants.
- We remove the old mastic completely and clean the joint faces back.
- Deep joints get backing rod, faces are primed if the manufacturer specifies it, then the joint is sealed and tooled.
- Each building is checked on completion and the work carries our 12-month guarantee.
What we need from you
- Warn occupants and staff about the work
- Let us know about inductions and permits
- Agree which areas must stay open
Get a fixed quote
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. For a chat about it beforehand, give us a call on 01277 525 020 or email us.
Related advice
Honest limits
Sealant solves a lot, but not everything, and we’re upfront when that’s the case. It won’t fix:
- Materials that need asbestos testing before work
- Water coming in from the roof or rainwater goods
- Frames that are rotten, warped or broken
If in doubt, speak to us on 01277 525 020 or email drawings and photos and we will say what we think before you book.
Surfaces we seal
- Window and door perimeters on blocks
- External wall and movement joints
- Communal entrances and stairwells
- Shopfronts below residential blocks
- Balcony and threshold joints
- Communal kitchens and washrooms
What happens if it’s left?
Sealing over failed mastic looks tidy for a while. It doesn’t bond and typically fails within a short time. Cutting out and resealing properly does it once. Sealant hardens, cracks and loses grip with age, UV and movement. Replacing it before it fails keeps water out.
Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits, along with the time of year for external work.
Why choose Mastic Doctor in Kemsley
- Fully insured, including public liability cover
- Coloured sealants to suit the setting, where available
- Joints cleaned back to sound surfaces
- Fixed quotes based on photographs, drawings or a visit
Take a look at our cost guide and how we’re accredited.
Mastic sealing in Kemsley: the local picture
Kemsley is within about 1 mile of the coast. On buildings near the shore, the side facing the weather normally needs its mastic renewed first, and they deserve more regular inspection. Kemsley 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 typically where frame mastic ages first.
Blocks of flats and mixed-use buildings often cluster around stations such as Kemsley station (to the north-west of Kemsley) and their window and balcony mastic tends to age at the same rate across a building. Property owners at sites such as Newington Enterprise Centre, 2.9 miles west of Kemsley, can have mastic renewed between lettings. For a school such as Kemsley Primary Academy, perimeter mastic on windows and doors is a holiday job.
Kemsley is about 1 mile north of Sittingbourne, in Kent. Commercial clients in Kemsley can call on us for mastic joints. Across Kent, 931 places are covered, including Kemsley. We also cover London, around 37 miles from Kemsley.
Work on mastic joints is covered throughout ME10 and ME9, for business premises of every kind. If your site is on Court Road, Menin Road and Hurst Lane or close by, we can quote for mastic joints. Sites close to Kemsley are covered too, including Howt Green (1 mile west), Milton Regis (1 mile south-east), Sittingbourne (1 mile south), Iwade (1 mile north-west) and Murston (1 mile south). Further afield, our area takes in Maidstone (11 miles south-west), Whitstable (13 miles east), Faversham (7 miles south-east), Minster (5 miles north-east), Davington (7 miles south-east) and Foley Park (10 miles south-west).
Around Kemsley
Recent enquiries here include premises near Milton Creek Country Park, The Three Hats Inn and Borden Grammar School, among other places. There’s a railway station in Kemsley itself: Kemsley station. Well-known places in the area include Castle Rough (0.6 miles east) and Court Hall Museum (0.8 miles south-west).
Surface by surface
External movement joints
Movement joints are cleaned out, backed with rod and resealed with a sealant of the right movement class.
Window and door perimeters on blocks
Window and door perimeters are where most mastic failure shows. We remove the failed mastic, prepare the faces, add backing rod if the joint is deep and reseal.
Cost factors for mastic joints
The price varies from site to site. It mainly depends on:
- How much there is to seal
- Removal of failed or old sealant
- Working within restricted access windows
- The product specified
There’s no price list, since every building and every scope is different. Call for a quote and we will price your job on its own details.
Sending details for a quote
It doesn’t need to be a full survey. A few details are enough to get going:
- A wide shot and a close-up of the area
- The product your specification calls for
- Rough lengths or quantities, or drawings if you have them
- Anything awkward about access or site hours
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, ring 01277 525 020 or use the quote form.
Looking after the joints
Once the work is signed off, these steps help:
- Keep a record of when each building was resealed
- Have the asbestos survey to hand for older buildings
- Include mastic in your cyclical inspections
- Mention RAMS, insurance or CSCS requirements up front
Encourage occupiers to report water or draughts at frames. A quick report keeps a small repair small.
Joints on a building age together, so it pays to look at the whole elevation. A planned reseal saves repeated visits.