Forstal mastic sealing
Sealant work in Forstal for main contractors, managing agents and facilities managers: mastic sealing for building owners, managing agents and housing associations, quoted at a fixed price.
- Damaged joints in communal entrances and corridors
- Draughts at frames across a block
- Estate-wide sealant that is simply worn out
Need mastic sealing in Forstal?
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
When something else is needed
Being straight saves everyone time. Fresh joints won’t solve:
- Cracked or crumbling render, brick or stone at the joint edges (we will tell you if so)
- Leaks from above rather than through a joint
- Failed window or door frames, which need a window contractor
Not sure which it is? You can ring 01277 525 020 or use the quote form and we’ll tell you honestly.
What we seal
- Communal entrances and stairwells
- External wall and movement joints
- Balcony and threshold joints
- Shopfronts below residential blocks
- Window and door perimeters on blocks
- Communal kitchens and washrooms
Mastic sealing for commercial buildings in Forstal
We diagnose before we prescribe: which joints have failed, why, and whether sealant is the right answer. Failed mastic is stripped, the faces taken back to sound material, primed where the manufacturer specifies and resealed and backing rod used wherever a joint is deep. We work on balcony and threshold joints, shopfronts below residential blocks and communal kitchens and washrooms, and the failures we are asked to look at most are no planned programme for sealant and worn sealant at communal door frames. Whoever orders the work in Forstal, the brief is usually the same: a clear scope, tidy work and joints that don’t fail again.
Owners and agents with buildings around smaller places such as Forstal 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.
The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.
- Where
- Forstal (ME20)
- Wider area
- Kent
- Guarantee
- 12 months on every job
- Quote
- A fixed quote before we start
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Maintenance after handover
Problems stay small when the joints are checked regularly. In particular:
- Make it easy for occupiers to report draughts
- Check the asbestos register before any old mastic is disturbed
- Log resealing dates block by block
- Group repairs into a planned programme
Ask residents or tenants to report draughts or leaks round windows early. A quick report keeps a small repair small.
Planned resealing is easier to budget than emergency repairs. A programme can start with the worst buildings and work down the list.
Other services in Forstal
Signs you need mastic sealing in Forstal
Many failed joints were sealed without backing rod, so the mastic is glued to the joint bottom too. That three-sided adhesion stops it stretching and it tears.
Site and facilities staff are often the first to spot these:
- Repeated reactive repairs to the same buildings
- Mastic failing across several blocks on an estate
- A mix of products and colours from past repairs
- Brittle perimeter mastic across a building
If you’re responsible for a building such as Methodist Church Including Sunday School, frame and door mastic needs the same attention as any other property.
Questions to ask before you book
- Will CSCS-carded applicators be on site?
- Whether primer will be used where the manufacturer specifies it
- Are they CHAS accredited or on Constructionline?
- Proof of insurance
What the job involves on each surface
Estate-wide resealing programmes
Consistent products and colours across an estate make future maintenance simpler.
Window and door perimeters on blocks
Frames vary from uPVC to aluminium and timber, and the product is matched to the frame material and the masonry. Colours are confirmed for the product used.
Our process
We schedule the visit to fit the site hours and access windows you give us. While we’re working, the area stays contained and tidy, and your contact hears from us before we move to the next area. Jobs in and around smaller places like Forstal are normally planned as a single visit, so photographs and measurements up front really help. Then the right materials arrive with us.
- We inspect the joints, building by building, and record what has failed and why.
- We send a fixed quote that sets out the joints, the products and the programme.
- The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
- We remove the old mastic completely and clean the joint faces back.
- Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
- Finished joints are looked over and the 12-month guarantee confirmed.
Getting the site ready
- Have the specification and drawings to hand
- Tell us what induction or permit system the site runs
- Let building users know which areas are affected
Get a fixed quote
For a fixed quote, speak to us on 01277 525 020 or email drawings and photos with the site address and an outline of the work. You can also send details through our quote form.
Related advice
Questions about Forstal
Is Forstal too small for you to travel to?
Not at all. Forstal is within our area. We work across Greater London and the South East. Good photos up front let us bring everything on the first visit.
Do you work in occupied care homes around Forstal?
Yes, with the manager deciding the order and timing of rooms. Noise and disruption are kept to a minimum.
Can weather delay the job?
For external joints, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.
Can you work to our specification?
Yes. We follow the specification, along with the manufacturer’s installation guidance, and we raise anything unclear before work begins.
Do you take on small jobs?
Single areas, one-off repairs and whole buildings are all quoted the same way: details, then a fixed price, then sealing, then a 12-month guarantee.
How do you reach windows on upper floors?
It depends on the building. How upper joints are reached is agreed before work is booked so the fixed quote reflects it.
Can you quote from photos?
Many jobs can be quoted from photographs, drawings or a joint schedule. If the job needs a look first, we’ll arrange a visit before quoting.
Block-wide mastic in Forstal
The 2 miles around Forstal include two care or nursing homes. For owners and operators of care buildings, window perimeters and external joints are best renewed in planned phases around residents. Forstal is in the South East, one of the UK’s drier regions. Outside work still depends on dry joints, and elevations facing the sun and the prevailing weather are normally where frame mastic ages first.
For owners of several units at places like Mid Kent Shopping Centre, 1.2 miles south of Forstal, one programme can deal with frame and external mastic across the lot. If you manage student housing near a university such as University for the Creative Arts (2.2 miles south of Forstal), the summer turnaround is the time for mastic.
Forstal is about 3 miles north-west of Maidstone, in Kent. Looking for mastic sealing in Forstal? We can help. Across Kent, 931 places are covered, including Forstal. Sites around London have their own page, about 29 miles away.
Commercial sites across ME20 are covered. Streets here include Beddow Way and Forstal Road. Just outside Forstal, we also work in Pratling Street (1 mile north-east), Eccles (1 mile north-west), New Hythe (2 miles west), Burham (2 miles north) and Larkfield (2 miles west). Nearby towns on our patch include Maidstone (3 miles south-east), Sittingbourne (11 miles east), Dartford (15 miles north-west), Sevenoaks (13 miles west), Royal Tunbridge Wells (15 miles south-west) and Gravesend (10 miles north-west).
What’s near Forstal
In Forstal, that means premises near Aylesford School, The Bush pub and Tyland Barn and the streets around them. The nearest railway station is Aylesford station, about 1.2 miles west. A little further out are Medway megaliths (1 mile north) and Maidstone Hospital (2 miles south). For a walk, there’s Boxley Hills and Burham Down.
Why it’s worth doing now in Forstal
Piecemeal repairs over the years often leave mismatched sealant. A block-wide reseal gives one product, one colour and one guarantee. One visit to deal with every failing joint makes more sense than several trips to a place like Forstal, rather than one at a time. Photos of every joint help us quote for the whole job.
Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well.
Why choose Mastic Doctor in Forstal
- Colour agreed before work starts
- Standard and matched colours in many product ranges
- Work carried out by CSCS-carded applicators
- Fully insured, including public liability cover
See how commercial sealant jobs are priced and our accreditations.