Commercial sealant contractors in Cobham, Kent
Need commercial sealant contractors in Cobham? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.
- Leaks that seem to come through a sealant line
- Smeared sealant across finishes from a rushed job
- Frame mastic that has hardened and come away from the wall
Commercial sealant contractors near Cobham
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Cobham: questions and answers
Is Cobham off your patch?
No. Small places get the same service as large ones. Our area covers London and the South East counties. Where we can, we group nearby jobs to make the most of each trip.
Can you match sealant colours for premises in Cobham?
Yes. Colour matching to frames, cladding, stone and shop-fit finishes is a regular part of the work. The quote lists the colours the product is made in.
Can you work to our specification?
Yes. The specification and the manufacturer’s installation guidance are what we work to, and any queries are raised before we start.
How long do sealant joints last?
There isn’t a single answer, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular inspection is the best way to catch problems early.
What do you need from us to quote?
Photos, drawings or a schedule of the joints are normally enough to start through the quote form on this site. If a visit is needed we will book one, and a fixed quote follows.
How long does a job like this take?
We plan the time on site around your programme and access. You will have an expected duration with the quote.
How do you keep disruption to occupiers down?
Most of the buildings we work in stay occupied. We agree the order of areas, protect what’s nearby and close off only the section we are sealing.
Commercial sealant contractors in Cobham
Mastic Doctor has been sealing joints for businesses and contractors since 2005, and the documents buyers ask for are ready: CHAS accredited, Constructionline member, five million pounds of public liability insurance and CSCS-carded applicators. If your site needs RAMS, an insurance certificate or CSCS details, say so and we will confirm with the quote. If you have smeared sealant across finishes from a rushed job and gaps behind commercial kitchen worktops and sinks, we can put it right. Whoever orders the work in Cobham, the brief is usually the same: a clear scope, tidy work and joints that don’t fail again.
We price commercial jobs in Cobham from photos, drawings or a site visit, and the scope is set out in writing.
Work in smaller places such as Cobham tends to come one building at a time: a pub kitchen, a hall, a small office. We plan the visit so everything on the list is done in one go, with the right products and colours on hand.
Our 12-month guarantee is about workmanship, not wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we are clear about what is covered before work starts.
- Place
- Cobham (DA12)
- Wider area
- Kent
- Guarantee
- 12 months on our workmanship
- Quotes
- A fixed quote before we start
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
Shops, offices and hotels in and around Cobham
Cobham is about 23 miles from central London. Business parks and retail centres are common around the capital’s motorway corridors. Occupiers with several premises in the region tend to prefer one contractor and one point of contact. Rainfall across the South East, Cobham included, is lower than in many parts of the UK. Drier doesn’t mean dry every day, so frontage work still has some give in the dates.
Premises within reach of Sole Street station (to the south-west of Cobham) often have busy frontages where joints are seen by everyone passing.
Cobham is about 3 miles south of Gravesend, in Kent. Anywhere in DA12, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. Our Kent coverage takes in 931 places. We also cover London, around 23 miles from Cobham.
We cover the DA12 postcode districts for sealant joints. For a building on The Street, Lawrence Drive and Cobhambury Road or nearby, we can quote for sealant joints. Just outside Cobham, we also work in Upper Bush (2 miles south-east), Lower Bush (2 miles south-east), Cuxton (2 miles south-east), North Halling (3 miles south-east) and Upper Halling (3 miles south). Further afield, our area takes in Maidstone (10 miles south-east), Sittingbourne (15 miles east), Dartford (8 miles north-west), Sevenoaks (12 miles south-west), Gravesend (3 miles north) and Tonbridge (14 miles south).
Landmarks near Cobham
Locally, jobs take us to sites close to Thamesview School, The Ship Inn and Jeskyns, among other places. For rail, the closest station is Sole Street station, roughly 1.2 miles south-west of the centre. A little further out are Rochester Castle (4.3 miles east) and Gravesham Community Hospital (3.9 miles north-west). For a walk, there’s Gad's Hill and Ranscombe Farm.
Towns and villages near Cobham
What else we do in Cobham
On site: what to expect
Diagnose, treat, sign off: every visit follows that pattern. First comes an inspection and agreement on scope, then we prepare and seal each joint with the specified product, and the job ends with a walk round and sign-off. Rural sites near Cobham may need directions, gate codes or a contact on site. Add it to your enquiry and we’ll build it into the plan.
- We start with the evidence: photographs, drawings or a look on site.
- A fixed quote follows, with removal and preparation included.
- We agree the order of work, access windows and site hours with you.
- The failed sealant comes out and the faces are prepared, with primer where required.
- Depth is set with backing, then the sealant is applied, tooled and the area tidied.
- Completed areas are signed off with you under our 12-month guarantee.
Getting the site ready
- Explain the parking and delivery arrangements
- Share the asbestos register for older buildings
- Send your site hours and access windows
Quotes
Photos, drawings or a schedule of the joints are often enough for a fixed quote. Where a site visit makes more sense, we’ll arrange one.
Related advice
What sets the cost
Your fixed quote is built from the real scope. It takes account of:
- The size and state of each joint
- Working within restricted access windows
- The total length or number of joints
- Distance, for remote addresses
We don’t publish prices, since every building and every scope is different. Call for a quote and we will price your job on its own details.
What we need to price the job
A good diagnosis starts with the right details. Let us know:
- Any dates the work must fit around
- What the building is and how it’s used
- Specification clauses that apply
- Asbestos survey details if the building is older
Let us know the site, the scope and your timescale, and a fixed quote will follow. To get it moving, give us a call on 01277 525 020 or send photos by email.
Aftercare for building managers
Sealant joints are maintenance items, and their life depends on movement, exposure, cleaning and use. Our advice:
- Check the asbestos register before anyone disturbs old sealant in an older building
- Log reseals in the O&M or maintenance records
- Keep abrasive pads and scrapers off resealed joints
- Report cracked or peeling sealant early
Our workmanship on each job is backed by a 12-month guarantee. Keep the handover details with your O&M or maintenance records.
Tenants and staff spot black or split sealant quickly, and in a hotel, office or shop it makes the whole space look neglected. Replacing it on a planned cycle keeps complaints down.
Building owners, agents and FMs in Cobham
When you manage a building on behalf of an owner, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.
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.
Site staff or a sealant specialist?
A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. A poor seal in places like these tends to cost more to put right later.
Signs you need commercial sealant contractors in Cobham
If sealant tears through its centre, it has failed cohesively. Typically the movement was too much for the sealant chosen: a bead laid too thin, an over-stretched joint or the wrong movement class. The same product in the same joint tends to fail the same way, which is why we look at the joint design as well.
Any of the following is a good reason to get the joints checked over:
- Sanitary sealant that has gone black and patchy
- Messy, uneven beads from earlier work that let the building down
- Expansion joints with the sealant torn out
- Gaps behind commercial kitchen worktops and sinks
Industrial estates such as Bowes Industrial Centre, 3 miles to the south-west of Cobham, have offices, trade counters and welfare areas whose sealant ages like any other building’s.
Questions to ask before you book
- Their public liability cover
- Can the work be phased to keep areas open?
- Is the sealant right for the movement and the substrate?
- How the joint faces will be prepared and primed