Mastic sealing for building owners and managing agents in Sandgate, Kent
Work needed on a mastic joint in Sandgate? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Estate-wide sealant that is simply worn out
- Patchy repairs in mismatched sealant
- Movement joints with sealant missing
Need mastic sealing in Sandgate?
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 Sandgate
We diagnose before we prescribe: what has failed, what caused it and whether new sealant will actually solve it. Old mastic is removed entirely, the faces prepared, primer used where the maker specifies it and new sealant tooled in and backing rod used wherever a joint is deep. We work on shopfronts below residential blocks, window and door perimeters on blocks and external wall and movement joints, and the failures we are asked to look at most are draught complaints from residents or tenants and complaints coming in block by block. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Sandgate is the same: the right product in a properly prepared joint.
Owners and agents with buildings around smaller places such as Sandgate tend to manage small terraces of association properties, converted barns and commercial units. Frame and wall-joint mastic on all of them ages and hardens.
Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and the quote explains what it covers.
- Place
- Sandgate (CT20, CT50)
- Region
- Kent
- Cover
- 12 months on our workmanship
- Price
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Updated
- 3 November 2026
Diagnose, treat, sign off
Occupied buildings need a little choreography. We sign and contain the area we’re in, with routes through the building left open and work section by section so the rest of the building stays in use. Rural sites near Sandgate may need directions, gate codes or a contact on site. Add it to your enquiry and we’ll build it into the plan.
- 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.
- Old sealant is stripped and each face prepared back to firm material.
- Backing rod and primer go in where the joint and the product need them, then new sealant is applied and tooled.
- Each building is checked on completion and the work carries our 12-month guarantee.
Getting the site ready
- Send asbestos survey details if the building is pre-2000
- Let us know about inductions and permits
- Send your site hours and access windows
Getting a fixed quote
A handful of photos and a postcode is the fastest way to a quote. Upload them with the quote form, or give us a call on 01277 525 020 or email the details over if you’d rather talk the job through.
Read more
What else we do in Sandgate
After the work
A few simple habits keep the new joints working:
- Start inspections with the most exposed faces
- Log resealing dates block by block
- Avoid piecemeal callouts where you can
- Have the asbestos survey to hand for older buildings
If paintable sealant was used, decoration can follow once it has cured. Non-paintable silicone shouldn’t be painted over unless told otherwise.
Water getting in round frames can damage plaster, decoration and the frames themselves. Resealing early keeps the job small.
How the job changes by surface
External movement joints
Brickwork, blockwork and panel joints let a building move. Once that sealant goes, rain can reach the wall.
Planned maintenance
How long mastic lasts depends on exposure, movement and the product used. Regular inspection is the best way to plan resealing.
What sets the cost
Your fixed quote is built from the real scope. It allows for:
- Phasing around occupants
- How much there is to seal
- Location, for remote and island sites
- The size and state of each joint
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 we need to price the job
For an accurate fixed quote, we need to understand the site. Send us:
- The type of building and who uses it
- Whether an asbestos survey exists
- Drawings or a marked-up plan, if available
- Where the site is, with the postcode
To get a fixed quote, call the office on 01277 525 020 or email the details over. You can also send details through our quote form.
What sealant work can’t fix
We check first that sealant really is the fix. It isn’t the answer for:
- Misted or failed double-glazed units
- Old mastic suspected of containing asbestos, which must be tested and dealt with by a specialist first
- Failed window or door frames, which need a window contractor
Not sure which it is? You can give us a call on 01277 525 020 or email us and we will tell you honestly before you book.
Where we work in Sandgate
- Communal kitchens and washrooms
- Window and door perimeters on blocks
- Communal entrances and stairwells
- External wall and movement joints
- Balcony and threshold joints
- Shopfronts below residential blocks
FAQs: Sandgate
Can work in a care setting near Sandgate go ahead while residents are there?
Yes, with the manager deciding the order and timing of rooms. Noise and disruption are kept to a minimum.
Will you take on a block within reach of Folkestone West station?
Yes. Blocks of any size are within what we do. Photos of each elevation help us quote accurately.
Can you plan resealing across several buildings?
Yes. We survey and price each building, then work through them in order starting wherever is most urgent.
Who decides which product is used?
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.
Do you guarantee the mastic work?
A 12-month guarantee covers our work. It covers our workmanship, not later building movement, damage or frame failures.
Do you cover Sandgate?
Yes. Sandgate is in our area and the rest of Kent. For a quote, speak to us on 01277 525 020 or send details through our quote form.
Can you take on resealing for a block portfolio?
We do. Most of our mastic sealing is for agents, factors, housing associations and portfolio landlords, and we quote building by building or as a programme.
Looking after buildings in and around Sandgate
Sandgate lies within about 1 mile of the sea. On buildings near the shore, the side facing the weather normally needs its mastic renewed first, and they deserve more regular inspection. Sandgate lies roughly 61 miles out from central London. Managed blocks of flats are a big part of commuter-belt property.
If you manage student housing near a university such as University Centre Folkestone, which lies east of Sandgate, the summer turnaround is the time for mastic. Site managers at schools like The Folkestone School for Girls can fit frame mastic into the summer works. Churches, halls and community buildings such as Church of St Paul are looked after by trustees and committees like any other owner, and their frames, doors and external joints need mastic renewed in time.
Sandgate is about 1 mile south-west of Folkestone, in Kent. We cover commercial sites throughout Sandgate, whether it’s a single job or part of a planned programme. Sandgate is one of 931 places in Kent on our list for mastic joints. Our Brighton page has more on work in that area, about 58 miles away.
Anyone looking for mastic sealing in CT20 and CT50 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. Buildings on East Road, Gough Road and Castle Road are within our area for mastic joints. If your building is just outside Sandgate, we cover Cheriton (1 mile north), Seabrook (1 mile west), Folkestone (1 mile north-east), Newington (2 miles north-west) and Peene (2 miles north-west). Further afield, our area takes in Ashford (13 miles west), Canterbury (14 miles north), Dover (8 miles north-east), Deal (15 miles north-east), Hythe (3 miles west) and Tower Hamlets (8 miles north-east).
Around Sandgate
We work on buildings around Lower Leas Coastal Park, Ship Inn and School of English Studies and the streets around them. For rail, the closest station is Folkestone West station, about 0.8 miles north-east of the centre. A little further out are Folkestone Museum (1.6 miles east) and Sandgate Castle (less than half a mile east). Not far away are Sugar Loaf Hill.
What happens if it’s left?
Replacing mastic before water gets in is a planned job. Once water has tracked in, the repair list grows and occupiers notice. Halls, stores and units around places like Sandgate may not be checked every day, so a failed joint can leak for a while before anyone sees it. Renewing joints in good time avoids the problem.
The price depends on how many linear metres there are, what has to come out first and the access. Call for a quote once you have the details.
What you get with us
- Failed material removed, not covered up
- One phone line for London, the South East and Scotland
- Workmanship guaranteed for 12 months
- A fixed quote before work starts
See what affects the cost and our accreditations and insurance.