Mastic Sealing in Seal
Mastic sealing in Seal, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.
- Communal area joints that look neglected
- Mastic failing across several blocks on an estate
- Open joints in brickwork or panels
Need mastic sealing in Seal?
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Questions about Seal
Will you take on a block within reach of Bat & Ball station?
Yes, and several blocks can go on one quote. Send the address, photos of the elevations and your access arrangements, and we will give a fixed quote.
Does your area include sites such as Bat & Ball Enterprise Centre, near Seal?
Yes, sites like Bat & Ball Enterprise Centre are within our area, along with the rest of Seal. A few photographs and the unit address let us price the work.
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’ll confirm the curing time on the day.
Do you work for managing agents and housing associations?
Yes. Most of our mastic sealing is for agents, factors, housing associations and portfolio landlords and work can be quoted per building or as a whole.
Will residents or tenants be disturbed?
Residents and tenants carry on as normal. We flag any areas that need internal access well before the dates so it can be arranged.
Which sealant will you use?
Where there’s a specification, we use the product it names. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
Is asbestos a concern with old mastic?
We don’t remove asbestos-containing materials. Anything suspect is tested before we carry on in line with the dutyholder’s asbestos management.
How we handle mastic sealing in Seal
Different joints need different sealants. Window perimeters and external joints often take a low-modulus neutral-cure silicone, and MS polymer sealants stick well to many substrates and often take paint. We’ll confirm the colours available for the specified product. We work on communal kitchens and washrooms, shopfronts below residential blocks and communal entrances and stairwells, and the failures we’re asked to look at most are complaints coming in block by block and a mix of products and colours from past repairs. Whoever orders the work in Seal, the brief is typically the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
For owners with a single building near Seal, we plan to finish in one visit where possible. Send photos of the frames and joints and we’ll give a fixed quote.
We sign every job off with a 12-month guarantee. The promise is simple: if the work we did fails within twelve months, we return to fix it.
- Place
- Seal (TN15)
- Wider area
- Kent
- Guarantee
- 12 months on every job
- Quotes
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
How the quote is worked out
Your fixed quote is built from the real scope. It takes account of:
- Location, for remote and island sites
- Joint width, depth and condition
- Working within restricted access windows
- Access and working height
Pricing mastic joints depends on how many there are, their condition and the access, and any specification that applies. Call for a quote.
Before you send an enquiry
We can often quote from photographs and a few details. It helps to include:
- Where the site is, with the postcode
- Any dates the work must fit around
- Approximate linear metres or a joint schedule
- Whether an asbestos survey exists
For a fixed quote, ring 01277 525 020 or send details through our quote form with the site address and an outline of the work. Our quote form is another easy route.
Towns and villages near Seal
Also in Seal
Planned mastic for Seal portfolios
Rainfall across the South East, Seal included, is lower than in many parts of the UK. Outside mastic still needs a dry joint and the right temperature, and elevations facing the sun and the prevailing weather are normally where frame mastic ages first. Central London is about 20 miles from Seal. Managed blocks of flats are a big part of commuter-belt property.
Property owners at sites such as Bat & Ball Enterprise Centre, 1 mile to the west of Seal, can have mastic renewed between lettings. For agents with blocks near Bat & Ball station, 1.1 miles west of Seal, a block-wide mastic programme deals with frames, balconies and entrances in one go. Historic properties like Knole House, 1.8 miles south of Seal, show the age of some local stock, where frame mastic must suit soft brick or stone.
Seal is about 2 miles north-east of Sevenoaks, in Kent. We cover Seal and the rest of Kent, with the same fixed quotes and 12-month guarantee as everywhere else. We work across 931 places in Kent, large and small. There’s a separate page for London, about 20 miles away.
We take on mastic joints across the TN15 postcode area, whatever the building. Buildings on High Street, Church Road and Jubilee Rise are within our area for mastic joints. If your building is just outside Seal, we cover Greatness (1 mile west), Godden Green (1 mile south), Styants Bottom (2 miles east), Stone Street (2 miles south-east) and Bitchet Green (2 miles south-east). A short drive away, we cover Maidstone (13 miles east), Dartford (11 miles north), Royal Tunbridge Wells (11 miles south), Gravesend (12 miles north-east), Tonbridge (7 miles south) and Northfleet (11 miles north-east).
Landmarks near Seal
Locally, jobs take us to sites close to Wildernesse School, Kemsing Down and The Five Bells Public House, among other places. For rail, the closest station is Bat & Ball station, about 1.1 miles west. Other landmarks nearby include Sevenoaks Hospital (1.1 miles west) and Sevenoaks Museum (1.7 miles south-west). The countryside around Seal includes Dryhill Nature Reserve.
What sealant work can’t fix
Our job is the joint, not everything around it. On its own, sealant can’t deal with:
- Leaks from above rather than through a joint
- Leaks through the frame itself rather than the perimeter
- Misted or failed double-glazed units
Not sure which it is? You can ring 01277 525 020 or email the details over and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Shopfronts below residential blocks
- Communal entrances and stairwells
- Window and door perimeters on blocks
- Balcony and threshold joints
- Communal kitchens and washrooms
- External wall and movement joints
Building owners, agents and FMs in Seal
Hotels, schools, healthcare sites, offices and retail units book us directly too. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.
Housing associations and managing agents often need work done across blocks and communal areas. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.
How a job runs
A typical day starts with protection: masking tape along the joint edges and sheeting over anything nearby. The work itself normally takes one or more days per building, depending on the joint lengths and the access, and our waste is bagged and taken away as we go. For work around Seal, we aim to finish in one visit, so we ask for photographs and rough sizes first. That way the right products come on the day.
- Each block or building is walked and the failed joints recorded with the likely cause.
- 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.
- Old sealant is stripped and each face prepared back to firm material.
- Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
- Completed joints are inspected and carry a 12-month workmanship guarantee.
Preparing the site
- Clear stock, furniture or equipment away from the joints
- Let building users know which areas are affected
- Tell us your opening times and when work is allowed
Get a fixed quote
A handful of photographs and a postcode is the fastest way to a quote. Send them through the quote form, or ring 01277 525 020 or email a schedule or drawings if you’d rather talk the job through.
Read more
Keeping the joints sound
Keep the joints in good shape with a few simple steps:
- Encourage occupiers to report problems at frames
- Share your contractor requirements early
- Prioritise elevations facing the weather
- Include mastic in your cyclical inspections
Encourage occupiers to report water or draughts at frames. A quick report keeps a small repair small.
Failed mastic often goes unnoticed until heavy rain finds it. Resealing when cracking first shows avoids water damage and the complaints that come with it.
What happens if it’s left?
Sealing over failed mastic looks tidy for a while. It won’t grip the old sealant and soon comes away. Full removal and proper preparation is what lasts. Halls, stores and units around places like Seal 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 work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote and we’ll explain how it’s made up.
Why clients in Seal choose us
- Colours chosen to suit frames, cladding or finishes where possible
- One contact handling all your sites
- Joints cleaned back to sound surfaces
- Our applicators hold CSCS cards