
Lenham construction mastic
Mastic packages for new-build and refurbishment projects across Lenham, by CSCS-carded applicators. Fully insured and CHAS accredited.
- Old sealant on a refurbishment that needs stripping before new work
- Mastic snags holding up handover
- Early adhesion failures on new external joints
Construction mastic for Lenham sites
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Different surfaces, different methods
Window and door perimeters
Perimeter joints between frames and the structure are the weather line on any new building. We use the specified perimeter sealant, typically a low-modulus neutral-cure silicone, with backing rod in deeper gaps.
Fire-rated sealant where specified
Fire-rated sealant forms part of some packages, installed to the product’s tested detail where it is specified. Fire stopping design belongs to the designer and building control; we work to the specification and the manufacturer’s installation guidance.
Construction mastic in Lenham, done properly
The programme rarely stands still, so the mastic package has to flex with it. The sequence is set with the site team and updated as plots or floors are handed over and we don’t seal before other trades have finished in an area. Sealing too early only means coming back once others have damaged it. We work on brick and block movement joints, internal decorators’ caulk and window and door perimeters, and what we’re called in for most is old sealant on a refurbishment that needs stripping before new work and external joints sealed in damp or cold conditions that are now failing. A specialist sealant contractor works differently from a general builder: in Lenham, that means joint design, primers and backing rod as standard.
Conversions around smaller places like Lenham often join new frames to old masonry or timber, and the sealant at those junctions has to cope with two materials that move differently, in a colour the planners or architect are happy with.
We stand by our work: 12 months, guaranteed. That covers our preparation and application, and we come back if anything isn’t right.

- Location
- Lenham (ME17)
- Region
- Kent
- Cover
- A 12-month guarantee
- Quote
- A fixed quote before we start
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Building and refurbishing in Lenham
At about 39 miles from central London, Lenham is within reach of the capital. Construction around the commuter belt mixes station-side flats with refurbished offices and units, and main contractors there need mastic that keeps to the programme. Rainfall across the South East, Lenham included, is lower than in many parts of the UK. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, which is why external dates are agreed with the site manager.
Projects at schools like Lenham Primary School work to term dates, so mastic is programmed tightly. For a contractor at a hotel such as Chilston Park Hotel (1.3 miles south of Lenham), the mastic often has to be finished before a reopening date. University estates such as Canterbury Christ Church University, 2.5 miles to the north-west of Lenham, tend to have a rolling programme of new buildings and refurbishments, each with window perimeters and facade joints to seal.
Lenham is about 7 miles south of Sittingbourne, in Kent. Businesses, contractors and managing agents in Lenham can call on us for mastic packages. Lenham is one of 931 places in Kent on our list. There’s a separate page for London, roughly 39 miles from Lenham.
We take on mastic packages across the ME17 postcode area. Streets here include High Street, Mitchell Close and Hatch Road. Just outside Lenham, we also work in Leadingcross Green (1 mile south), Woodside Green (1 mile north-east), West Street (1 mile north-east), Lenham Forstal (2 miles south-east) and Lenham Heath (2 miles south-east). A short drive away, we cover Maidstone (8 miles west), Ashford (9 miles south-east), Sittingbourne (7 miles north), Faversham (9 miles north-east), Minster (13 miles north) and Kings Hill (13 miles west).
Near you in Lenham
Recent enquiries here include premises near Kiln Wood, The Red Lion pub and The Lenham School. Lenham has its own railway station: Lenham station. A little further out are Coldbridge Castle (2.7 miles south) and The Dog Collar Museum (3.6 miles west).
How a job runs
A typical day starts with protection: masking tape along the joint edges and sheeting over anything nearby. On site, the work typically takes as long as the agreed sequence needs, which comes down to joint lengths, access and handover dates, and we clear our waste as we work. For a site in Lenham, we plan so the whole job is done in one go where possible. Clear photos and measurements help us bring the right products.
- First we take quantities off the drawings and read through the specification.
- You receive a fixed quote listing scope, products and phasing.
- You tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we confirm it with the quote.
- Areas are sealed plot by plot or floor by floor as the trades hand them over.
- Every joint is prepared, set to depth and sealed with the specified product.
- Before handover, snags are dealt with and the package is signed off under our 12-month guarantee.
Before we start on site
- Explain the parking and delivery arrangements
- Tell us which areas need to stay in use
- Have the specification and drawings to hand
Quotes
Tell us about the building, the joints and when you need the work done, and we will put a fixed quote together. To get it moving, ring 01277 525 020 or send details through our quote form.
Read more
Honest limits
Being straight saves everyone time. Fresh joints won’t solve:
- Designing joint widths or choosing the specification (that sits with the designer)
- Deciding which fire-stopping product a penetration needs
- Frame gaps too wide for sealant, which the installer needs to correct
If in doubt, call 01277 525 020 or email the details over and we will say what we think before you book.
Joints and surfaces we work on
- Internal decorators’ caulk
- Floor and skirting junctions
- Sanitary and kitchen joints
- Brick and block movement joints
- Cladding and panel joints
- Window and door perimeters
Why act early in Lenham
Getting the mastic contractor involved early pays off. Early involvement means gaps, products and access are sorted before the programme bites. Leave it late and they turn up on the snag list. For buildings in places like Lenham, one well-planned visit beats several small ones, so it’s worth dealing with every failing joint at once.
Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits.
Why us?
- Sealing commercial buildings since 2005
- Public liability insurance in place
- Colours chosen to suit frames, cladding or finishes where possible
- A range of standard colours, depending on the product
Read what affects the cost or our accreditations.
Cost factors for mastic packages
We price every job individually. The main factors are:
- Location, for remote and island sites
- Induction, permit and paperwork requirements
- How accessible the joints are
- How much there is to seal
Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote and we will put a fixed figure on it.
Details that help us quote
A few photographs plus some basic facts will normally do. Please tell us:
- Your programme or deadline
- Access details, including height
- Where the site is, with the postcode
- The asbestos register, for older buildings
We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, call the office on 01277 525 020 or send photos by email.
FAQs: Lenham
Does your area include sites such as Roebuck Business Park, near Lenham?
Yes. We cover Lenham and the area around it, including industrial estates, business parks and retail parks such as Roebuck Business Park. Photos and a short description are enough for a first look.
Is Lenham too far out for you?
No. Small places get the same service as large ones. London and every South East county are within our area. Good photos up front let us bring everything on the first visit.
Can one quote cover more than one building?
Yes. A group of buildings can go on one quote, and you deal with one contact throughout.
What accreditations do you hold?
CHAS and Constructionline are both in place, and our applicators hold CSCS cards. Public liability insurance is in place.
Does the weather affect the work?
Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.
Can you work plot by plot or floor by floor?
Working to your programme, we seal each area as it’s handed over. The sequence is settled with your site team.
How soon can the area be used again?
We’ll confirm how long the chosen product needs to cure, and flag anything to keep off until it has cured.
Places near Lenham
Other services in Lenham
Work for main contractors and building owners
When you manage a building on behalf of an owner, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.
Blocks and communal areas make up much of the work for housing associations and agents. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.