Mastic sealing for building owners and managing agents in Cranbrook, Kent
We carry out mastic sealing for building owners, managing agents and housing associations in Cranbrook and the surrounding area. Send photographs or drawings for a fixed quote.
- Cracked, hardened mastic round windows on a block
- Worn sealant at communal door frames
- Movement joints with sealant missing
Mastic sealing for Cranbrook sites
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 Cranbrook
For over 20 years we have resealed joints for owners, agents and landlords. Every applicator holds a CSCS card, and the work is backed by public liability insurance. Each building we complete carries a 12-month guarantee on our workmanship. Site teams most often ask us about patchy repairs in mismatched sealant and complaints coming in block by block, on communal entrances and stairwells, shopfronts below residential blocks and balcony and threshold joints. Whoever orders the work in Cranbrook, the brief is normally the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
Converted and older buildings in and around Cranbrook often put modern windows into old walls. Perimeter joints need a sealant that suits both frame and masonry.
What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Place
- Cranbrook (TN17, TN18)
- Region
- Kent
- Cover
- 12 months on every job
- Price
- Quoted before any work starts
- Phone
- 01277 525 020
- Updated
- 3 November 2026
FAQs: Cranbrook
Can you quote for mastic across several buildings in and around Cranbrook?
Yes. Planned programmes across a building, block or estate are a core part of this service. Residents are given notice through you, and the work moves building by building.
Is Cranbrook too small for you to travel to?
No. Small places get the same service as large ones. We cover Greater London and the counties of the South East. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.
Is mastic sealing guaranteed?
A 12-month guarantee covers our work. It covers our workmanship, not later building movement, damage or frame failures.
Can you work to our specification?
Yes. Send it with your enquiry, and we’ll price the work to it.
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.
Is asbestos a concern with old mastic?
Asbestos removal isn’t part of our work. Anything suspect is tested before we carry on in line with the dutyholder’s asbestos management.
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.
Should maintenance staff do it?
Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong usually costs more in the end than doing them right.
General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.
After the work
Your facilities or cleaning team can help the joints last. Share these points with them:
- Have the asbestos survey to hand for older buildings
- Log resealing dates block by block
- List the paperwork your organisation requires when you send details
- Start inspections with the most exposed faces
Keep records of when each building was resealed. It helps plan the next round and gives you a history.
The longer failed joints are left, the more likely the substrate edges break up. Then the edges may need repairing first and the job grows.
Surface by surface
Planned maintenance
Mastic wears out like any building component; how fast comes down to movement, weather, UV and the product. Regular inspection is the best way to plan resealing.
Window and door perimeters on blocks
We normally work through a block’s windows in a planned order. Access is agreed with you before the quote is fixed.
Why act early in Cranbrook
Looking at mastic during planned maintenance costs little. Leaving it until there’s a leak turns it into reactive work with less control over timing. For buildings in places like Cranbrook, one well-planned visit beats several small ones, so we’d suggest renewing all the joints that are going, not just the worst.
Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits.
Why clients in Cranbrook choose us
- One phone line for London, the South East and Scotland
- Health and safety: CHAS accredited
- Fixed quotes based on photos, drawings or a visit
- Workmanship guaranteed for 12 months
See what affects the cost or our accreditations and insurance.
When to call us in Cranbrook
Buildings move with temperature and moisture, and every joint has to stretch and squeeze with them. If the joint or the product wasn’t suited to the movement, it splits and fails early.
If one of these sounds familiar, it’s time for a closer look:
- Worn sealant at communal door frames
- Repeated reactive repairs to the same buildings
- Window mastic that has split and shrunk
- Water getting in round frames after rain
Site managers at schools like Cranbrook School can fit frame mastic into the summer works.
Before you book anyone
- Will failed sealant be removed rather than covered?
- Whether primer will be used where the manufacturer specifies it
- How they handle RAMS and site documents
- How long is the guarantee, and what does it include?
Mastic sealing in Cranbrook: the local picture
Cranbrook sits in one of the drier corners of the country, the South East. Even so, frame mastic only goes on in dry, workable conditions, and the sunniest, most exposed sides of a building typically need attention first. Central London is about 39 miles from Cranbrook. Commuter-belt towns tend to have plenty of managed blocks near stations and town centres.
If you’re responsible for a building such as Congregational Church, frame and door mastic needs the same attention as any other property. Landlords with units on estates such as Hartley Dyke Business Centre (1.2 miles south-west of Cranbrook) can bring frame, door and external mastic across several units into one programme.
Cranbrook is about 12 miles south of Maidstone, in Kent. We cover Cranbrook, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Cranbrook is one of 931 places in Kent on our list. There’s a separate page for Brighton, roughly 34 miles from Cranbrook.
Commercial sites across TN17 and TN18 are covered. We cover commercial and managed buildings on High Street, Crane Lane and White Lion Yard and the roads nearby. Close to Cranbrook, our area also takes in Baker's Cross (1 mile east), Coursehorn (1 mile east), Swattenden (1 mile south), Hartley (1 mile south-west) and Gill's Green (3 miles south-west). Bigger towns within reach include Maidstone (12 miles north), Ashford (15 miles east), Royal Tunbridge Wells (12 miles west), Tonbridge (13 miles north-west), Kings Hill (13 miles north-west) and Foley Park (13 miles north).
Around Cranbrook
Locally, jobs take us to sites close to The Crown Public House, Crane Valley and Cranbrook Church of England Primary School. Other landmarks nearby include Sissinghurst Castle (2.5 miles north-east) and Benenden Hospital (3.6 miles east).
Our process
Working in a building that stays open takes some planning. The work area is signed and kept contained, keep walkways clear and work section by section so the rest of the building stays in use. Work in places the size of Cranbrook is planned as a single visit where we can. Photos with rough sizes let us arrive with everything needed.
- We inspect each building and record the joints that have failed.
- You get a fixed quote, per block or for the whole programme.
- We agree the programme and dates with you.
- Failed sealant is removed and the faces prepared.
- Joints are resealed and tooled.
- Each building is checked and signed off with the 12-month guarantee.
Getting the site ready
- Share your working hours and any access restrictions
- Make sure the joints can be reached
- Explain the parking and delivery arrangements
Quotes
Every quote starts with the facts: the joints involved, quantities, access and the product called for. Send what you have, and we’ll arrange a site visit if anything is unclear.