Sandwich mastic sealing
We carry out mastic sealing for building owners, managing agents and housing associations in Sandwich. Send details for a fixed quote.
- Movement joints with sealant missing
- The same joint failures repeated across a portfolio
- No planned programme for sealant
Mastic sealing across Sandwich
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Mastic sealing for commercial buildings in Sandwich
Our clients include managing agents, property factors in Scotland, housing associations and landlords with block or commercial portfolios. Many prefer a planned programme to one-off visits and we quote and schedule each building in turn. The enquiries we see most involve occupiers reporting cold air round windows and brittle perimeter mastic across a building, across external wall and movement joints, communal entrances and stairwells and communal kitchens and washrooms. A specialist sealant contractor works differently from a general builder: in Sandwich, that means joint design, primers and backing rod as standard.
In a smaller place such as Sandwich, landlords and agents tend to look after small blocks, flats over shops, sheltered housing and commercial units. Their window perimeters and external joints need renewing as the mastic ages.
Guaranteed is the last step of every job. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.
- Location
- Sandwich (CT13)
- Region
- Kent
- Cover
- 12 months on every job
- Quotes
- A fixed quote before we start
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Quoting for work in Sandwich
Quotes vary with the job. Expect it to depend on:
- The site’s rules and procedures
- Working within restricted access windows
- Backing rod, priming and other preparation
- Quantities, in metres or numbers
There’s no price list, because the scope varies so much from one building to the next. Call for a quote and we will price your job on its own details.
Before you send an enquiry
To price the job accurately, we need to understand the site. Useful things to include:
- Any dates the work must fit around
- Approximate linear metres or a joint schedule
- What the building is and how it’s used
- Photos of the joints, close up and from further back
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To ask for one, call 01277 525 020 or email drawings and photos.
Different surfaces, different methods
Commercial and mixed-use buildings
Landlords with commercial portfolios have shopfronts, office entrances and external joints to look after. A planned programme suits multi-building portfolios.
Window and door perimeters on blocks
On most blocks, the frame-to-wall joint is where failure shows first. We remove the failed mastic, prepare the faces, add backing rod if the joint is deep and reseal.
From enquiry to sign-off
Where the site stays busy, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed, then reopened once the sealant allows before the next one starts. Several jobs near Sandwich can be grouped on one trip. Mention the building’s opening times and we will work within them.
- First comes a look at the joints and, for older buildings, the asbestos records.
- The products and programme are set out in a fixed quote.
- We strip out the old sealant.
- Joint faces are cleaned, backed and resealed.
- We finish each building before moving to the next.
Preparing the site
- Share the asbestos register for older buildings
- Move anything stored against the joints
- Have the specification and drawings to hand
Request a quote
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.
Related advice
Nearby places to Sandwich
Also in Sandwich
Questions we are asked in Sandwich
Is Birnham Farm Business Centre, near Sandwich, within your area?
Yes. Our area takes in Sandwich and its surroundings, with estates and business parks such as Birnham Farm Business Centre included. Photos and a short description are enough for a first look.
Do you work for managing agents with blocks near Sandwich station?
Yes, and several blocks can go on one quote. Photos of each elevation help us quote accurately.
Do you work in Sandwich?
Yes. Sandwich is in our area and the rest of Kent. For a quote, give us a call on 01277 525 020 or send photos by email.
Does the weather affect the work?
Outside, yes. The joint has to be dry and within the product’s temperature range, so damp, frosty or very cold days can stop external work. Internal work is rarely affected.
Can you reseal a whole block or estate?
Yes. We survey and price each building, then work through them in order, and the programme can start with the worst.
What guarantee do you give on resealing?
There is a 12-month guarantee on our workmanship, backed by public liability insurance.
Do you work with property factors and landlords?
We do. Managing agents, property factors in Scotland, housing associations and landlords with block or commercial portfolios are our main clients for this work, and we quote building by building or as a programme.
When something else is needed
We seal joints; we don’t mend everything behind them. On its own, sealant can’t deal with:
- Water coming in from the roof or rainwater goods
- Frames that are rotten, warped or broken
- Old mastic suspected of containing asbestos, which must be tested and dealt with by a specialist first
If in doubt, phone 01277 525 020 or send photos by email and we will say what we think.
Surfaces we seal
- Communal kitchens and washrooms
- External wall and movement joints
- Balcony and threshold joints
- Shopfronts below residential blocks
- Communal entrances and stairwells
- Window and door perimeters on blocks
Do you need mastic sealing in Sandwich?
Previous repairs often sealed new mastic over old. New silicone has nothing to grip on old silicone and the repair soon fails.
What tends to prompt an enquiry:
- Draughts at frames across a block
- Repeated reactive repairs to the same buildings
- Old repairs sealed over failed mastic
- The same joint failures repeated across a portfolio
If you look after a block within reach of Sandwich station, less than half a mile to the south-east of Sandwich, frame and balcony mastic can be renewed on one programme.
Comparing quotes
- Will CSCS-carded applicators be on site?
- Will RAMS and insurance details be available?
- Their approach to joint depth and backing
- Whether old or failed sealant will be cut out, not overlaid
For managing agents and facilities managers
CHAS accredited and a Constructionline member, we are straightforward to vet for your supplier list. We are fully insured, and our insurance certificate can go with the quote.
When you manage a building on behalf of an owner, you need clear quotes and clear reporting. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative, plus a 12-month guarantee.
Mastic sealing around Sandwich: how the place shapes the job
With the shore within about 3 miles, Sandwich counts as a coastal location. On buildings near the shore, the side facing the weather normally needs its mastic renewed first, so it’s worth inspecting those sides more often. The South East is one of the drier parts of the UK. Even so, frame mastic only goes on in dry, workable conditions, and south- and west-facing elevations, which take the most sun and rain, often age first.
If you own or manage units on a site such as Birnham Farm Business Centre, which lies south-west of Sandwich, failed mastic on frames, door surrounds and external joints can be dealt with unit by unit. Trustees of buildings like Sandwich United Reformed Church can bring frame and external mastic into a planned maintenance list.
Sandwich is about 5 miles north-west of Deal, in Kent. Businesses, contractors and managing agents in Sandwich can call on us for mastic joints. Across Kent, 931 places are covered, Sandwich among them. London is covered too, around 64 miles from Sandwich.
If you need mastic sealing in CT13, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. Buildings on Cattle Market, Market Street and High Street are within our area. Sites close to Sandwich are covered too, including Great Stonar (1 mile north), Felderland (1 mile south), Worth (1 mile south), Woodnesborough (1 mile south-west) and Statenborough (1 mile south-west). Further afield, our area takes in Canterbury (11 miles west), Margate (8 miles north), Dover (10 miles south), Folkestone (15 miles south-west), Ramsgate (5 miles north-east) and Broadstairs (7 miles north-east).
Local landmarks in Sandwich
Recent enquiries here include premises near Ham Fen, Sir Roger Manwood's School and The Red Cow Public House, among other places. There’s a railway station in Sandwich itself: Sandwich station. Nearby you’ll also find The Precinct Toy Collection (under half a mile north) and Ramsgate General Hospital (5 miles north-east). Open spaces near Sandwich include Monk's Wall nature reserve.