Mastic Sealing in Comp
Mastic sealing for building owners, managing agents and housing associations across Comp, carried out by CSCS-carded applicators. CHAS accredited and fully insured.
- Repeated reactive repairs to the same buildings
- Worn sealant at communal door frames
- Brittle perimeter mastic across a building
Need mastic sealing in Comp?
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Block-wide mastic in Comp
Comp is about 24 miles from central London. Around the capital’s commuter belt, managing agents look after many blocks close to stations and town centres. Rainfall across the South East, Comp included, is lower than in many parts of the UK. Even so, frame mastic only goes on in dry, workable conditions, and elevations facing the sun and the prevailing weather are usually where frame mastic ages first.
With historic buildings such as Old Soar Manor, 1.7 miles south-west of Comp, in the wider area, owners of older properties around Comp should expect mastic to need a product that suits old masonry. For a school such as Platt Church of England Voluntary Aided Primary School, perimeter mastic on windows and doors is a holiday job. Blocks of flats and mixed-use buildings often cluster around stations such as Borough Green & Wrotham station (1.5 miles west of Comp) and their window and balcony mastic tends to age at the same rate across a building.
Comp is about 3 miles west of Kings Hill, in Kent. We cover Comp and the rest of Kent, with the same fixed quotes and 12-month guarantee as everywhere else. Our Kent coverage takes in 931 places. London is covered too, around 24 miles from Comp.
Business premises anywhere in TN15 are within our area for mastic joints. If your building is just outside Comp, we cover Platt (1 mile north-west), Wrotham Heath (1 mile north-east), Crouch (1 mile south-west), Claygate Cross (1 mile south-west) and Borough Green (1 mile west). A short drive away, we cover Maidstone (8 miles east), Dartford (12 miles north-west), Sevenoaks (7 miles west), Royal Tunbridge Wells (11 miles south), Gravesend (10 miles north) and Tonbridge (7 miles south-west).
Around Comp
Recent enquiries here include premises near The Blue Anchor pub and Wrotham School, among other places. For rail, the closest station is Borough Green & Wrotham station, roughly 1.5 miles west. Well-known places in the area include Ightham Court (2.3 miles west) and Beechin Wood Archery Museum (under half a mile west).
Mastic sealing for commercial buildings in Comp
Older blocks and commercial buildings can have mastic that contains asbestos. Before we disturb it, we ask to see the asbestos register or survey and if it’s suspected, work stops until it’s tested. Removing asbestos-containing material isn’t something we do. The enquiries we see most involve draught complaints from residents or tenants and patchy repairs in mismatched sealant, on balcony and threshold joints, external wall and movement joints and window and door perimeters on blocks. Whoever orders the work in Comp, the brief is usually the same: a clear scope, tidy work and joints that don’t fail again.
In and around smaller places like Comp, landlords and agents often look after small groups of housing association properties, converted farm buildings and community buildings. Frame and wall-joint mastic on all of them ages and hardens.
A 12-month guarantee applies to all our work. If an installation problem shows up, phone 01277 525 020 or send details through our quote form and we’ll arrange a return visit.
- Location
- Comp (TN15)
- Region
- Kent
- Cover
- A 12-month guarantee
- Quote
- A fixed quote before we start
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Different surfaces, different methods
Window and door perimeters on blocks
Blocks have a mix of frame materials, and the product is matched to the frame material and the masonry. Colours are confirmed for the product used.
Tenement and older buildings
Some old mastics in pre-2000 buildings contain asbestos, so we check the asbestos register or survey first. If it’s suspected, work stops until it’s tested.
Cost factors for mastic joints
We price every job individually. The things that drive the figure:
- Working within restricted access windows
- Access and working height
- Joint width, depth and condition
- Induction, permit and paperwork requirements
Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits, along with the time of year for external work.
What to include in your enquiry
A good diagnosis starts with the right details. Tell us:
- How the joints are reached, and at what height
- Whether the building will be occupied during the work
- Whether an asbestos survey exists
- Your programme or deadline
Need a figure for a tender or a budget? We’ll quote against your scope and drawings that you can work with. If you have questions first, call the office on 01277 525 020 or send details through our quote form.
What else we do in Comp
Should maintenance staff do it?
Redoing a failed joint usually costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.
The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.
For managing agents and facilities managers
Main contractors use us as their sealant subcontractor, on new build and refurbishment alike. We work to your programme, your specification and your site rules, and our applicators hold CSCS cards.
As a CHAS accredited contractor and Constructionline member, we’re straightforward to vet for your supplier list. We are fully insured, and our insurance certificate can go with the quote.
Diagnose, treat, sign off
Tell us your site hours and access windows and we’ll plan around them. While we are working, the area stays contained and tidy, and your contact hears from us before we move to the next area. Smaller jobs around Comp can be grouped with others nearby, which keeps travel down. A fixed quote is given before anything 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.
Before we start on site
- Make sure the joints can be reached
- Tell us what induction or permit system the site runs
- Send your site hours and access windows
Getting a fixed quote
Let us know the site, the scope and your timescale, and we will put a fixed quote together. To get it moving, give us a call on 01277 525 020 or send photos by email.
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Questions we’re asked in Comp
Can you work at a site such as Bourne Enterprise Centre, by Comp?
Yes. Our area takes in Comp and its surroundings, with estates and business parks such as Bourne Enterprise Centre included. A few photographs and the unit address let us price the work.
Do you work for managing agents with blocks near Borough Green & Wrotham station?
Yes. Blocks of any size are within what we do. Give us the building’s details and say how residents are notified, and we will quote and plan to suit.
Can you send RAMS and CSCS details before starting?
We are CHAS accredited, a Constructionline member and carry public liability insurance. Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.
Can people stay in the building while you reseal?
The work is planned around occupiers. Dates and areas are agreed with you so residents or tenants can be told and communal access is kept open.
How long do sealant joints last?
Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.
Does the weather affect the work?
It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.
Do you cover Comp?
Yes. We cover Comp, and the simplest way to start is to call the office on 01277 525 020 or use the quote form.
Why act early in Comp
A bead run over old mastic can look like a repair. It doesn’t bond and normally fails within a short time. Cutting out and resealing properly does it once. Older rural buildings around Comp move with the seasons, and rigid or tired sealant can’t keep up. The right product, sized to the joint, copes much better.
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.
What you get with us
- CHAS accredited
- Joints cleaned back to sound surfaces
- Constructionline member
- A range of standard colours, depending on the product
See how commercial sealant jobs are priced and our accreditations and insurance.