Riverhead mastic sealing
Planning work on a mastic joint in Riverhead? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Old repairs sealed over failed mastic
- Damp patches beside frames
- Complaints coming in block by block
Mastic sealing across Riverhead
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Riverhead: questions and answers
Is Riverhead too far out for you?
Not at all. Riverhead is within our area. Our area covers London and the South East counties. Good photographs up front let us bring everything on the first visit.
Will you take on work at estates like Salters Heath Business Centre, close to Riverhead?
Yes. Estates, retail parks and business parks around Riverhead, Salters Heath Business Centre among them, are all within reach. To start, just ring 01277 525 020 or email us with the unit, the joints involved and your access times.
Do you supply RAMS and insurance details?
Our credentials include CHAS, Constructionline and public liability insurance. For specific documents, tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.
Will you just go over the old sealant?
No. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.
What guarantee do you give on resealing?
There is a 12-month guarantee on our workmanship and we hold public liability insurance.
How long do sealant joints last?
It depends on movement, UV and weather, cleaning, traffic and the product. Treat them as maintenance items and inspect them regularly.
Can you plan resealing across several buildings?
We can. We survey and price each building, then work through them in order starting wherever is most urgent.
Mastic sealing for commercial buildings in Riverhead
Before work starts, most agents and landlords want the documents in order. Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote. We’re a Constructionline member and CHAS accredited, and we carry public liability insurance. If you are dealing with draught complaints from residents or tenants and no planned programme for sealant, we can put it right, on communal entrances and stairwells, external wall and movement joints and shopfronts below residential blocks alike. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Riverhead is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Owners with buildings around smaller places like Riverhead often group mastic work so one visit covers several properties. Send the addresses and photos and we’ll quote for all of them together.
Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we are upfront about that.
- Where
- Riverhead (TN13, TN14)
- Wider area
- Kent
- Cover
- 12 months on every job
- Quote
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Why it’s worth doing now in Riverhead
Failed perimeter mastic lets cold air in around frames and the windows normally get the blame. In many cases, new perimeter sealant deals with it when the frames themselves are sound. Sealant hardens, cracks and loses grip with age, UV and movement. Replacing it before it fails keeps water out.
Pricing mastic joints depends on how many there are, their condition and the access, and any specification that applies. Call for a quote.
Why appoint us
- Colour agreed before work starts
- Our applicators hold CSCS cards
- Specification-led, product-correct work
- Fully insured
Read what affects the cost or our accreditations.
When to bring in a specialist
The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.
General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.
Building owners, agents and FMs in Riverhead
Agents, factors and owners’ representatives all follow the same route: send the details, accept a fixed quote, and we carry out and guarantee the work. Keys, access and contacts can be agreed in advance.
As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. We’re fully insured, and our insurance certificate can go with the quote.
Also near Riverhead
More services for Riverhead
When it isn’t the sealant
Before quoting, we check that sealant is the right answer. It won’t put right:
- Cracked or crumbling render, brick or stone at the joint edges (we’ll tell you if so)
- Water coming in from the roof or rainwater goods
- Failed window or door frames, which need a window contractor
If you’re not sure, just ring 01277 525 020 or email a schedule or drawings and we will give you a straight answer before you book.
Surfaces we seal
- Communal entrances and stairwells
- External wall and movement joints
- Communal kitchens and washrooms
- Shopfronts below residential blocks
- Window and door perimeters on blocks
- Balcony and threshold joints
How a job runs
In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each section is protected, cleaned back and sealed before the next one starts. Work in places the size of Riverhead is planned as a single visit where we can. Photos with rough sizes let us arrive with everything needed.
- We check the asbestos register for older buildings and look at the joints.
- A fixed quote covers the joints, products and order of work.
- We strip out the old sealant.
- The joints are prepared and resealed with the right product.
- Buildings are completed in turn.
Preparing the site
- Tell us your opening times and when work is allowed
- Warn occupants and staff about the work
- Explain the parking and delivery arrangements
Ask for a quote
Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we will arrange a site visit if anything is unclear.
Related advice
Maintenance after handover
Once the work is signed off, a little attention goes a long way:
- List the paperwork your organisation requires when you send details
- Have the asbestos survey to hand for older buildings
- Start inspections with the most exposed faces
- Ask residents or tenants to report leaks and draughts early
Add mastic joints to your cyclical inspections. Check for splits, open joints, brittle mastic and lifting edges, and note the building and elevation.
Water getting in round frames can damage plaster, decoration and the frames themselves. Early resealing is far simpler than repairs inside.
Looking after buildings in and around Riverhead
At about 19 miles from central London, Riverhead is within reach of the capital. Managed blocks of flats are a big part of commuter-belt property. The South East is one of the drier parts of the UK. Outside mastic still needs a dry joint and the right temperature, and south- and west-facing elevations, which take the most sun and rain, often age first.
Trustees of buildings like Church of St Mary can bring frame and external mastic into a planned maintenance list. With historic buildings such as Knole House, 2 miles south-east of Riverhead, in the wider area, owners of older properties around Riverhead should expect mastic to need a product that suits old masonry. For agents with blocks near Sevenoaks station (0.8 miles south-east of Riverhead), a block-wide mastic programme deals with frames, balconies and entrances in one go.
Riverhead is about 1 mile west of Sevenoaks, in Kent. Our applicators travel to Riverhead for work on mastic joints. 931 places across Kent fall within our area, Riverhead among them. London is covered too, around 19 miles from Riverhead.
Work on mastic joints is covered throughout TN13 and TN14. Streets here include London Road, Hamlin Road and Witches Lane. Close to Riverhead, our area also takes in Dunton Green (1 mile north), Bessels Green (1 mile south-west), Sevenoaks (1 mile east), Chipstead (1 mile west) and Kippington (1 mile south). Bigger towns within reach include Maidstone (15 miles east), Dartford (11 miles north), Royal Tunbridge Wells (11 miles south), Gravesend (14 miles north-east), Tonbridge (8 miles south-east) and Northfleet (13 miles north-east).
Landmarks near Riverhead
In Riverhead, that means premises near The Beehive Public House, Trinity School and Montreal Park and the streets around them. Riverhead’s nearest station is Sevenoaks station, roughly 0.8 miles south-east of the centre. Nearby you will also find Kemsing Castle Bank (3 miles north-east) and Sevenoaks Museum (1.4 miles south-east). For a walk, there’s Dryhill Nature Reserve and Betsom's Hill.