
Facade and window perimeter sealing in Hartley, Kent
Work needed on a facade joint in Hartley? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Weathered joints at frame-to-structure perimeters
- Patch repairs that keep failing
- Hard, chalky sealant that no longer flexes
Facade sealing for Hartley sites
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Why act early in Hartley
Topping up a failed joint usually buys very little time. A full cut-out and reseal costs more on the day but lasts much longer and avoids repeat call-outs. One visit to deal with every failing joint makes more sense than several trips to a place like Hartley. Send photos of each area and we will quote for the lot.
The specified product makes a difference, as does the preparation each joint needs. Access, phasing and site rules also count.
Why clients in Hartley choose us
- Coloured sealants to suit the setting, where available
- Old sealant cut out, never sealed over
- CHAS accredited contractor
- Fully insured
Take a look at what affects the cost and our accreditations and insurance.
About our facade sealing in Hartley
Some clients need every window on a block resealed; others need a few leaking frames sorted. Either way, the method is the same: cut out, clean, back, prime where needed and seal. Each job carries our 12-month guarantee. If you’re dealing with failed seals around shopfront and entrance frames and air leaks through failed facade joints, we can put it right. Searching for sealant specialists in Hartley? Mastic Doctor has worked for contractors, FMs and building owners since 2005, with CSCS-carded applicators.
Around smaller places like Hartley, building work typically means conversions of farm buildings, a few new houses or an extension to a hall or school. Perimeters, facade joints and internal sealant all need doing properly, however small the scheme.
Work we carry out in Kent comes with a 12-month guarantee. Should something we installed fail, ring 01277 525 020 or email a schedule or drawings and we’ll come back to it.
- Location
- Hartley (TN17)
- Region
- Kent
- Cover
- A 12-month guarantee
- Quotes
- A fixed quote before we start
- Call
- 01277 525 020
- Last updated
- 3 November 2026

Our process
Diagnose, treat, sign off: that’s the shape of every visit. First comes an inspection and agreement on scope, then we prepare and seal each joint with the specified product, and the job ends with a walk round and sign-off. For work around Hartley, we aim to finish in one visit, so we ask for photos and rough sizes first. Then the right materials arrive with us.
- Access, site rules and timing are settled with the client up front.
- We only seal when joints are dry and within the product’s temperature range.
- Each joint is cut out and the edges inspected.
- Faces are cleaned, primed where needed and backed.
- Sealant is gunned in and tooled hard onto both faces.
- We hand over with our 12-month workmanship guarantee.
Getting the site ready
- Agree which areas must stay open
- Flag any permit to work we will need
- Arrange parking or a loading space
Getting a fixed quote
Need a figure for a tender or a budget? We’ll quote against your scope and drawings that you can work with. For a chat about it beforehand, call the office on 01277 525 020 or send details through our quote form.
Read more
Work for main contractors and building owners
Hotels, schools, healthcare sites, offices and retail units come to us directly as well. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.
We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Sites in Hartley can sit alongside others in a wider programme.
Doing it in-house
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
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.
Different surfaces, different methods
Coping and flashing joints
Sometimes the coping or flashing itself has failed. We tell you if the fix is a roofing or metalwork job rather than a reseal.
Cladding panel joints
On sealed panel systems, every joint keeps water out. Failed runs are cut out and rebuilt end to end with backing and a facade-grade sealant.
Facade sealing around Hartley: how the place shapes the job
The area within 2 miles of Hartley holds several hotels. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up. Hartley lies roughly 39 miles out from central London. Construction around the commuter belt mixes station-side flats with refurbished offices and units, and each scheme needs its mastic sealed to programme.
School extensions, at buildings such as High Weald Academy, normally run to the summer holidays, mastic included. For a contractor at a hotel such as The George Hotel, which lies north-east of Hartley, the mastic often has to be finished before a reopening date.
Hartley is about 8 miles south-east of Paddock Wood, in Kent. Any commercial site in Hartley is covered, for single jobs and planned programmes alike. Hartley is one of 931 places we cover in Kent for facade joints. Brighton is covered too, around 33 miles from Hartley.
Work on facade joints is covered throughout TN17. Among the streets we cover are Hartley Road, Campion Crescent and Hartley Court Gardens. Nearby places we also cover include Swattenden (1 mile east), Cranbrook (1 mile north-east), Baker's Cross (2 miles north-east), Gill's Green (2 miles south) and Beal's Green (2 miles south). Nearby towns on our patch include Maidstone (13 miles north), Royal Tunbridge Wells (11 miles west), Tonbridge (13 miles north-west), Kings Hill (14 miles north), Foley Park (14 miles north) and Paddock Wood (8 miles north-west).
Near you in Hartley
Around Hartley, our work takes us to commercial buildings near Crane Valley. Well-known places in the area include Benenden Hospital (4.7 miles east) and Sissinghurst Castle (3.8 miles north-east).
Towns and villages near Hartley
Other services in Hartley
Do you need facade sealing in Hartley?
Overlaying old sealant is a common shortcut that fails quickly. Fresh silicone won’t stick to cured silicone, so the new bead peels away within a season or two.
Typical triggers for a call:
- New sealant peeling off old mastic
- Failed sealant on precast panel joints
- Failed seals around shopfront and entrance frames
- Facade joints cracked through the middle
For a contractor working at a hospital such as Hawkhurst Community Hospital, 2.6 miles to the south of Hartley, perimeter and facade sealing is planned around patients and deliveries.
Before you book anyone
- How the existing material will be dealt with
- Will RAMS and insurance details be available?
- Their pre-qualification and accreditations
- Their public liability cover
Your questions answered
Is Hartley off your patch?
Not at all: smaller places are covered as well as towns. London and every South East county are within our area. Where we can, we group nearby jobs to make the most of each trip.
Do you take on work at healthcare sites like Hawkhurst Community Hospital?
Yes, hospitals are one of the sectors we cover. Each area is agreed with the ward or department and the estates team in advance.
Is the work guaranteed?
Yes. Workmanship is guaranteed for 12 months.
Do you provide access for facade work?
That comes down to the access arranged for the job. Share what access exists or is planned when you send details, and we will agree the approach together.
Can you quote from photos?
It depends on the job. Simple work can often be priced from photos, while larger or less clear jobs get a site visit first.
What type of sealant goes on window perimeters?
Low-modulus, neutral-cure silicone suits many facade and perimeter joints. Some joints call for hybrid, PU or polysulphide instead.
Can you find out why a window is leaking?
Yes. Photos are often enough to start, followed by a visit if needed. Many frame leaks are sealant failures, though not all.