
Walderslade mastic sealing
Mastic sealing for building owners, managing agents and housing associations in Walderslade. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Water getting in round frames after rain
- Draught complaints from residents or tenants
- Estate-wide sealant that is simply worn out
Mastic sealing in Walderslade
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
What we can’t put right
We check first that sealant really is the fix. It isn’t the answer for:
- Cracked or crumbling render, brick or stone at the joint edges (we’ll tell you if so)
- Materials that need asbestos testing before work
- Roof leaks, gutters or failed flashings that aren’t sealant joints
If in doubt, speak to us on 01277 525 020 or use the quote form and we’ll say what we think.
What we seal
- External wall and movement joints
- Communal entrances and stairwells
- Communal kitchens and washrooms
- Shopfronts below residential blocks
- Balcony and threshold joints
- Window and door perimeters on blocks
Mastic sealing for commercial buildings in Walderslade
For over 20 years we have resealed joints for owners, agents and landlords. Every applicator holds a CSCS card and we hold public liability insurance. Each building we complete carries a 12-month guarantee on our workmanship. Site teams most often ask us about repeated reactive repairs to the same buildings and damaged joints in communal entrances and corridors, on communal kitchens and washrooms, communal entrances and stairwells and external wall and movement joints. Searching for sealant specialists in Walderslade? We’ve been sealing commercial buildings since 2005, with CSCS-carded applicators.
For landlords and associations with stock in and around Walderslade, grouping buildings into one visit saves travel. Send the addresses and photos and we will quote for all of them together.
We stand by our work: 12 months, guaranteed. It covers how we prepared and applied the sealant, and we come back if anything isn’t right.

- Where
- Walderslade (ME5)
- Region
- Kent
- Cover
- 12 months on our workmanship
- Price
- A fixed quote before we start
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Looking after buildings in and around Walderslade
Walderslade lies roughly 29 miles out from central London. Within reach of London, blocks run by agents and associations are common around stations, and window and balcony mastic on them tends to age at the same rate. Walderslade sits in one of the drier corners of the country, the South East. Outside mastic still needs a dry joint and the right temperature, and the sunniest, most exposed sides of a building typically need attention first.
Churches, halls and community buildings such as St William's Church are looked after by trustees and committees like any other owner, and their frames, doors and external joints need mastic renewed in time. For a school such as Tunbury Primary School, perimeter mastic on windows and doors is a holiday job. Property owners at sites such as Lordswood Industrial Estate, 1.1 miles to the south-east of Walderslade, can have mastic renewed between lettings.
Walderslade is about 1 mile south of Chatham, in Kent. Any commercial site in Walderslade is covered, whether it’s a single job or part of a planned programme. We work across 931 places in Kent, from busy centres to rural villages. For work in that direction, see our London page, about 29 miles away.
If you need mastic sealing in ME5, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. We cover commercial and managed buildings on Farm Road, York Avenue and Walsham Road and the roads nearby. Main routes into Walderslade include the A2045. If your building is just outside Walderslade, we cover Blue Bell Hill (1 mile west), Lordswood (1 mile east), Kit's Coty (1 mile south-west), Chatham (1 mile north) and Lidsing (2 miles east). Further afield, our area takes in Maidstone (5 miles south), Sittingbourne (9 miles east), Dartford (15 miles north-west), Sevenoaks (15 miles west), Gravesend (9 miles north-west) and Tonbridge (14 miles south-west).
Local landmarks in Walderslade
We work on buildings around Walderslade Girls' School, Westfield Wood and Greenacre Academy, among other places. The closest station to Walderslade is Chatham station, roughly 3.1 miles north of the centre. Nearby you’ll also find Pentagon Shopping Centre (3.3 miles north) and Medway megaliths (1.6 miles south-west). Green spaces nearby include Burham Down and Blue Bell Hill.
Nearby places to Walderslade
More services for Walderslade
Aftercare for building managers
Cleaning and maintenance staff play a part too. Pass these on to them:
- Track which buildings were done and when
- Start inspections with the most exposed faces
- Group repairs into a planned programme
- Reduce knocks to communal area joints
Log the date and extent of the resealing for each block. It helps plan the next round and gives you a history.
Water getting in round frames can damage plaster, decoration and the frames themselves. Resealing early keeps the job small.
FAQs: Walderslade
Can you quote for a block close to Chatham station?
Yes, we work for agents, landlords and housing associations with blocks of every size. We work to your notice and access arrangements.
Do you cover business parks and estates near Walderslade, such as Lordswood Industrial Estate?
Yes. We cover Walderslade and the area around it, including industrial estates, business parks and retail parks such as Lordswood Industrial Estate. Photos and a short description are enough for a first look.
How many days will you need on site?
The duration is planned around your programme and the access we are given. You will have an expected duration with the quote.
Can you plan resealing across several buildings?
Block-wide and estate programmes are common. The quote can be split however suits your budgeting.
How do you handle work on occupied blocks?
Residents and tenants carry on as normal. If any flats or units need access, we will tell you in advance so it can be arranged.
How soon can the area be used again?
That comes down to the sealant and the temperature. Some take light use quickly, others need longer to cure, and we confirm it before leaving site.
Can you take on resealing for a block portfolio?
Yes. Managing agents, property factors in Scotland, housing associations and landlords with block or commercial portfolios are our main clients for this work and work can be quoted per building or as a whole.
On site: what to expect
We follow your site rules from the start: signing in, inductions and any permit to work. Once we’re cleared to begin, we take the joints in the sequence agreed with you. Several jobs near Walderslade can be grouped on one trip. Tell us your site hours and we will plan around them.
- We inspect the joints, building by building, and record what has failed and why.
- A fixed quote follows, split by block or building if that suits you.
- 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.
Before we start on site
- Agree which areas must stay open
- Clear stock, furniture or equipment away from the joints
- Tell us your opening times and when work is allowed
Get a fixed quote
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. To get it moving, speak to us on 01277 525 020 or use the quote form.
Related advice
Cost factors for mastic joints
These are the things that shape the price:
- Travel to remote or island sites
- Phasing around occupants
- The site’s rules and procedures
- How accessible the joints are
Every site prices differently: joint size, product, access and site hours all play a part. A fixed quote follows once we understand the job.
Sending details for a quote
A good diagnosis starts with the right details. Tell us:
- What the building is and how it’s used
- Rough lengths or quantities, or drawings if you have them
- Asbestos survey details if the building is older
- Photos of the joints, close up and from further back
Every quote starts with the facts: the joints involved, quantities, access and the product called for. Share whatever details you have and we’ll fill any gaps with a visit.
When to bring in a specialist
There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and we’ll confirm the paperwork you need with the quote.
What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.
Why deal with it now?
Resealing ahead of leaks keeps it to a maintenance task. Once water has tracked in, the repair list grows, and the complaints come with it. A failed joint lets water into a building whatever its size. Catching it early means a reseal rather than repairs.
Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well.
Why choose Mastic Doctor in Walderslade
- Old sealant cut out, never sealed over
- 12-month guarantee on workmanship
- Fixed quotes based on photographs, drawings or a visit
- Work to your specification and the manufacturer’s guidance