
Mastic sealant contractors in Hersden
Work needed on a mastic joint in Hersden? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Draughts at frames across a block
- Water getting in round frames after rain
- Damaged joints in communal entrances and corridors
Mastic sealing in Hersden
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Mastic sealing in Hersden
Our clients include managing agents, property factors in Scotland, housing associations and landlords with block or commercial portfolios. A planned, building-by-building programme often works better than reacting to each complaint, with each block quoted and scheduled in turn. We work on shopfronts below residential blocks, communal entrances and stairwells and communal kitchens and washrooms, and the usual reasons a site gets in touch are cracked, hardened mastic round windows on a block and movement joints with sealant missing. Whoever orders the work in Hersden, the brief is typically the same: a clear scope, tidy work and joints that don’t fail again.
Places the size of Hersden normally have some housing association stock, small blocks and mixed-use buildings. The mastic around their frames and external joints ages like anywhere else.
Every job is signed off with a 12-month guarantee. The promise is simple: if the work we did fails within twelve months, we return to fix it.
- Location
- Hersden (CT3)
- Region
- Kent
- Guarantee
- A 12-month guarantee
- Quotes
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026

How the job changes by surface
External movement joints
Movement joints are cleaned out, backed with rod and resealed with a sealant of the right movement class.
Planned maintenance
We can work into your cyclical maintenance plan, building by building.
Why it’s worth doing now in Hersden
A bead run over old mastic can look like a repair. It won’t grip the old sealant and soon comes away. Full removal and proper preparation is what lasts. Sealant hardens, cracks and loses grip with age, UV and movement. Replacing it before it fails keeps water out.
Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits.
Why appoint us
- Constructionline member
- Matching to RAL references, product permitting
- Joints cleaned back to sound surfaces
- A range of standard colours, depending on the product
Read our cost guide or how we’re accredited.
Quoting for work in Hersden
Your fixed quote is built from the real scope. It takes account of:
- Whether the work must be split into stages
- Quantities, in metres or numbers
- Location, for remote and island sites
- Access and working height
Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a quote and we’ll explain how it’s made up.
What to include in your enquiry
For an accurate fixed quote, we need to understand the site. Useful things to include:
- What the building is and how it’s used
- A wide shot and a close-up of the area
- The asbestos register, for older buildings
- Access details, including height
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. For smaller jobs, photographs and a description will do.
Diagnose, treat, sign off
Before any cutting starts, the area is protected: tape along each joint edge and covers over finishes, stock and equipment close by. On site, the work typically takes anything from a day to a few weeks, depending on the number of buildings and joints, and we clear our waste as we work. Work in places the size of Hersden is planned as a single visit where we can. Photos with rough sizes let us arrive with everything needed.
- We check the asbestos register for older buildings and look at the joints.
- The products and programme are set out in a fixed quote.
- We strip out the old sealant.
- Joint faces are cleaned, backed and resealed.
- Buildings are completed in turn.
Preparing the site
- Warn occupants and staff about the work
- Share your working hours and any access restrictions
- Send asbestos survey details if the building is pre-2000
Get a fixed quote
The quickest route to a quote is a few photos and the site postcode. Upload them with the quote form, or give us a call on 01277 525 020 or send photos by email if you’d rather talk the job through.
Read more
Common problems we fix in Hersden
Poor preparation explains many failed joints. Without clean, sound faces and a primer where the product needs one it comes away from one face.
These are often picked up first by site or facilities staff:
- Draughts at frames across a block
- Repeated reactive repairs to the same buildings
- Communal area joints that look neglected
- Damp patches beside frames
If you’re responsible for a building such as Church of All Saints, frame and door mastic needs the same attention as any other property.
What to look for in a quote
- Will RAMS and insurance details be available?
- Can the work be phased to keep areas open?
- Their public liability cover
- Are they CHAS accredited or on Constructionline?
Nearby places to Hersden
Other services in Hersden
Frames, entrances and external joints in Hersden
Rainfall across the South East, Hersden included, is lower than in many parts of the UK. Outside work still depends on dry joints, and south- and west-facing elevations, which take the most sun and rain, often age first. At about 56 miles from central London, Hersden is within reach of the capital. Around the capital’s commuter belt, managing agents look after many blocks close to stations and town centres, and window and balcony mastic on them tends to age at the same rate.
For agents with blocks near Sturry station, 1.9 miles to the south-west of Hersden, a block-wide mastic programme deals with frames, balconies and entrances in one go. Property owners at sites such as Canterbury Industrial Park (to the east of Hersden) can have mastic renewed between lettings.
Hersden is about 4 miles south of Herne Bay, in Kent. Anywhere in CT3, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. Hersden is one of 931 places in Kent on our list for mastic joints. London is covered too, around 56 miles from Hersden.
We take on mastic joints across the CT3 postcode area, whatever the building. For a building on The Firs, The Sycamores and Chequer Tree Close or nearby, send details and we will quote for mastic joints. Nearby places we also cover include Westbere (1 mile south-west), Stodmarsh (1 mile south-east), Hoath (1 mile north), Knave's Ash (1 mile north) and Sturry (2 miles west) for mastic joints. Further afield, our area takes in Canterbury (4 miles south-west), Margate (11 miles north-east), Dover (14 miles south-east), Ramsgate (11 miles east), Broadstairs (12 miles east) and Whitstable (6 miles north-west).
Near you in Hersden
In Hersden, that means premises near Frank Montgomery School, Spires Academy and Ye Olde Yew Tree Inn and the streets around them. Hersden’s nearest station is Sturry station, roughly 1.9 miles south-west of the centre. A little further out are Canterbury Castle (4.5 miles south-west) and St Martins Hospital (3.4 miles south-west). Not far away are West Blean and Thornden Woods.
Should maintenance staff do it?
Putting right a botched joint often costs more than sealing it well at the start, 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.
General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.
Questions we’re asked in Hersden
Do you work for managing agents with blocks near Sturry station?
Yes. Blocks of any size are within what we do. Send the address, photographs of the elevations and your access arrangements, and we’ll give a fixed quote.
Is Hersden off your patch?
Not at all: smaller places are covered as well as towns. We cover Greater London and the counties of the South East. Where we can, we group nearby jobs to make the most of each trip.
How long does a job like this take?
It depends on the scope, though a typical visit typically takes a few days for most blocks, with larger programmes scheduled building by building. For bigger or phased jobs, we will set out a timescale with the quote.
Do you supply RAMS and insurance details?
Our credentials include CHAS, Constructionline and public liability insurance. For specific documents, tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.
Can you plan resealing across several buildings?
Yes, planned programmes suit estates and portfolios. The quote can be split however suits your budgeting.
Can you seal joints high up on a block?
Access is discussed and agreed before the quote is fixed. Tell us the building height and any access already in place and we will confirm the approach in the quote.
When can the area be used after sealing?
That comes down to the sealant and the temperature. Some take light use quickly, others need longer to cure, so we will confirm the curing time on the day.