Mastic sealing for building owners and managing agents in Heart's Delight, Kent
Mastic sealing for building owners, managing agents and housing associations in Heart's Delight and across Kent. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Cracked, hardened mastic round windows on a block
- The same joint failures repeated across a portfolio
- Repeated reactive repairs to the same buildings
Need mastic sealing in Heart's Delight?
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Mastic sealing in Heart's Delight, done properly
In buildings from before 2000, some old mastics contain asbestos. We check the asbestos register or survey before any old sealant is cut out and if it’s suspected, work stops until it’s tested. Removing asbestos-containing material isn’t something we do. We work on shopfronts below residential blocks, communal kitchens and washrooms and balcony and threshold joints, and the failures we’re asked to look at most are leaks at window and door perimeters and brittle perimeter mastic across a building. Whether you call it commercial sealant work, mastic application or joint sealing, in Heart's Delight it comes down to the same thing: the right product in a properly prepared joint.
Around smaller places like Heart's Delight, older walls fitted with newer windows are a familiar sight. Perimeter mastic there has to grip an uneven face and suit the building’s character.
Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.
- Where
- Heart's Delight (ME10, ME9)
- Region
- Kent
- Guarantee
- 12 months on our workmanship
- Price
- Quoted before any work starts
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Common questions from Heart's Delight clients
We manage a building near Sittingbourne station. Can you help?
Yes. Blocks of any size are within what we do. Give us the building’s details and say how residents are notified, and we will quote and plan to suit.
Is Heart's Delight too small for you to travel to?
Not at all. Heart's Delight is within our area. We work across Greater London and the South East. Good photographs up front let us bring everything on the first visit.
Can you send RAMS and CSCS details before starting?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote. We are CHAS accredited and a Constructionline member.
Does weather matter for sealant work?
It can, for external work. Sealant won’t bond properly to a wet or frosty joint, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.
Can you reseal a whole block or estate?
Yes. Each building is inspected, quoted and scheduled in turn, and the programme can start with the worst.
Is it fine to apply new sealant on top of old?
No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.
How do you reach windows on upper floors?
Every block is different. We agree access with you at quote stage so there are no surprises.
Work for main contractors and building owners
Hospitality, education, healthcare, office and retail clients come to us directly as well. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.
For main contractors, we work as the sealant subcontractor on new-build and refurbishment projects. We work to your programme, your specification and your site rules, and our applicators hold CSCS cards.
Also near Heart's Delight
Also in Heart's Delight
Mastic sealing around Heart's Delight: points for this area
Central London is about 37 miles from Heart's Delight. Commuter-belt towns tend to have plenty of managed blocks near stations and town centres; their frame mastic often ages block-wide. Rainfall across the South East, Heart's Delight included, is lower than in many parts of the UK. Outside work still depends on dry joints, while the elevations that take the most sun tend to show hardened mastic first.
Buildings close to stations like Sittingbourne station (1.4 miles north-east of Heart's Delight) are often flats over shops, with frame mastic to keep sound. If you own or manage units on a site such as Kent Science Park, 1.3 miles south-east of Heart's Delight, failed mastic on frames, door surrounds and external joints can be dealt with unit by unit.
Heart's Delight is about 1 mile south-west of Sittingbourne, in Kent. Heart's Delight sits inside our coverage, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Heart's Delight is one of 931 places we cover in Kent for mastic joints. We also cover London, some 37 miles away.
Anyone looking for mastic sealing in ME10 and ME9 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. We cover commercial and managed buildings on The Street, Borden Lane and Coppins Lane and the roads nearby. Nearby places we also cover include Borden (1 mile north-west), Tunstall (1 mile south-east), Sittingbourne (1 mile north-east), Highsted (2 miles south-east) and Rodmersham Green (2 miles south-east). A short drive away, we cover Maidstone (9 miles south-west), Ashford (15 miles south-east), Whitstable (14 miles east), Faversham (8 miles east), Minster (7 miles north-east) and Kings Hill (14 miles west).
Near you in Heart's Delight
We work on buildings around Westlands School and Cromers Wood, among other places. For rail, the closest station is Sittingbourne station, roughly 1.4 miles north-east. Other landmarks nearby include Bayford Court (1.7 miles north-east) and Sittingbourne Heritage Museum (1.5 miles north-east).
Common problems we fix in Heart's Delight
Communal entrances and corridors see a lot of wear, with joints near the floor and around doors suffering most. Regular cleaning wears them further.
Clients typically get in touch after noticing one or more of the following:
- The same joint failures repeated across a portfolio
- Movement joints with sealant missing
- Complaints coming in block by block
- Draughts at frames across a block
Student accommodation around universities such as Canterbury Christ Church University, 4.5 miles south of Heart's Delight, is typically managed block by block, which suits a planned mastic programme.
What your quote should include
- Are they CHAS accredited or on Constructionline?
- The terms of the workmanship guarantee
- How they handle RAMS and site documents
- Do they follow the manufacturer’s priming guidance?
How the quote is worked out
What shapes the price:
- Working within restricted access windows
- Induction, permit and paperwork requirements
- The size and state of each joint
- Distance, for remote addresses
Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a fixed quote.
Sending details for a quote
A good diagnosis starts with the right details. Tell us:
- The site address and postcode
- Rough lengths or quantities, or drawings if you have them
- The type of building and who uses it
- The asbestos register, for older buildings
A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we will fill any gaps with a visit.
Aftercare for building managers
Your facilities or cleaning team can help the joints last. Share these points with them:
- Include mastic in your cyclical inspections
- Avoid piecemeal callouts where you can
- Log resealing dates block by block
- Protect low-level joints in entrances
Our workmanship is covered for 12 months, so report any failure in that time. After that, regular inspection keeps the programme on track.
Budgets are easier to plan when sealant is part of planned maintenance. We can quote buildings in priority order so spending is spread.
On site: what to expect
Tell us your site hours and access windows and we’ll plan around them. On the day, the work area is kept contained and tidy, and your contact hears from us before we move to the next area. If others near Heart's Delight need work, visits can be combined. You’ll have a fixed quote before work starts.
- We inspect each building and record the joints that have failed.
- The quote is fixed and split as suits you.
- We agree the programme and dates with you.
- Failed sealant is removed and the faces prepared.
- New sealant goes in with backing rod and primer where needed.
- We check the finished work and confirm the guarantee.
Getting the site ready
- Let us know about inductions and permits
- Arrange parking or a loading space
- Have the specification and drawings to hand
Quotes
Let us know the site, the scope and your timescale, and a fixed quote will follow. To get it moving, phone 01277 525 020 or email drawings and photos.
Related advice
General trades versus a specialist
Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
Redoing a failed joint usually costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.