Mastic sealing for building owners and managing agents in Fenn Street, Medway
Mastic sealing for building owners, managing agents and housing associations in Fenn Street. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- The same joint failures repeated across a portfolio
- Movement joints with sealant missing
- Patchy repairs in mismatched sealant
Mastic sealing for businesses in Fenn Street
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Blocks and managed buildings in Fenn Street
Fenn Street sits close to the coast, within about 2 miles. Sea-facing elevations take driven rain and salt, and their mastic shows it before the sheltered sides do, so it’s worth inspecting those sides more often. Fenn Street lies roughly 29 miles out from central London. Around the capital’s commuter belt, managing agents look after many blocks close to stations and town centres; their frame mastic often ages block-wide.
For agents with blocks near Gillingham (Kent) station, 4.4 miles south of Fenn Street, a block-wide mastic programme deals with frames, balconies and entrances in one go. Older community buildings, Church of St Mary among them, often have frames of mixed ages whose mastic varies.
Fenn Street is about 5 miles north of Gillingham, in Medway. Our applicators travel to Fenn Street for work on mastic joints. 54 places across Medway fall within our area, Fenn Street among them. Our London page has more on work in that area (29 miles or so).
Anyone looking for mastic sealing in ME3 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. If your site is on Winterberry Avenue, Sharnal Street and Parbrook Road or close by, we can quote for mastic joints. We also cover Sharnal Street (1 mile south-west), High Halstow (1 mile west), Tunbridge Hill (1 mile south-east), St Mary Hoo (1 mile north-east) and Kingsnorth (1 mile south-east). A short drive away, we cover Gillingham (5 miles south), Chatham (7 miles south), Rochester (5 miles south-west), Rainham (6 miles south), Strood (6 miles south-west) and Luton (6 miles south).
Landmarks near Fenn Street
Locally, jobs take us to sites close to The Hundred of Hoo Academy and the streets around them. For rail, the closest station is Gillingham (Kent) station, roughly 4.4 miles south of the centre. Nearby you will also find Medway Maritime Hospital (4.9 miles south) and Upnor Castle (3.7 miles south-west). Open spaces near Fenn Street include Bishop Saltings.
How we handle mastic sealing in Fenn Street
Treatment starts with a proper look: what has failed, what caused it and whether new sealant will actually solve it. 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. The enquiries we see most involve the same joint failures repeated across a portfolio and water getting in round frames after rain, on balcony and threshold joints, window and door perimeters on blocks and shopfronts below residential blocks. A specialist sealant contractor works differently from a general builder: on jobs in Fenn Street, preparation and product choice get the time they need.
For owners with a single building near Fenn Street, we plan to finish in one visit where possible. Photos of each elevation help us quote accurately.
Our 12-month guarantee is about workmanship, not wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we are clear about what is covered before work starts.
- Location
- Fenn Street (ME3)
- Region
- Medway
- Guarantee
- 12 months on our workmanship
- Quotes
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Updated
- 3 November 2026
FAQs: Fenn Street
Is a smaller place like Fenn Street outside your area?
No. Small places get the same service as large ones. We cover Greater London and the counties of the South East. Where we can, we group nearby jobs to make the most of each trip.
Our building in Fenn Street is near the coast: does that change the sealant?
It can, yes: buildings near the sea take more wind-driven rain, and salt in the air nearer the shore. Product choice and preparation matter more, and sea-facing elevations are worth inspecting more often.
Who decides which product is used?
If the job is specified, we follow the specification. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.
What if the old mastic contains asbestos?
Some mastics in pre-2000 buildings contain asbestos. We ask for the asbestos register or survey before work starts and suspect material is tested first.
How many days will you need on site?
We plan the time on site around your programme and access. You will have an expected duration with the quote.
How do you reach windows on upper floors?
Every block is different. We agree access with you at quote stage so the fixed quote reflects it.
Is it fine to apply new sealant on top of old?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.
Owners, agents and contractors
We work for building owners and managing agents on everything from one building to a spread of sites around Fenn Street. Several sites can go on one quote, which keeps the paperwork simple.
As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.
When to call us in Fenn Street
Poor preparation explains many failed joints. Without clean, sound faces and a primer where the product needs one, the bead peels off one side.
If one of these sounds familiar, it’s time for a closer look:
- Mastic failing across several blocks on an estate
- Patchy repairs in mismatched sealant
- Brittle perimeter mastic across a building
- No planned programme for sealant
Student accommodation around universities such as University of Greenwich - Medway, 3.9 miles to the south-west of Fenn Street, is typically managed block by block, which suits a planned mastic programme.
Before you book anyone
- What level of public liability insurance do they hold?
- How the existing material will be dealt with
- What site paperwork they can supply
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
Should maintenance staff do it?
What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.
For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
How a job runs
We bring the products specified for the job, along with primers and backing rod. Joint faces are cleaned back to sound, dry surfaces, the manufacturer’s primer is applied where it’s called for, and the sealant is tooled off neatly. If others near Fenn Street need work, visits can be combined. A fixed quote is given before anything starts.
- Each block or building is walked and the failed joints recorded with the likely cause.
- A fixed quote follows, split by block or building if that suits you.
- Dates, areas and access are agreed so residents or tenants can be told in advance.
- We remove the old mastic completely and clean the joint faces back.
- Deep joints get backing rod, faces are primed if the manufacturer specifies it, then the joint is sealed and tooled.
- Finished joints are looked over and the 12-month guarantee confirmed.
Preparing the site
- Share the asbestos register for older buildings
- Arrange parking or a loading space
- Warn occupants and staff about the work
Get a fixed quote
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.
Advice
When something else is needed
We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:
- Cracked or crumbling render, brick or stone at the joint edges (we will tell you if so)
- Frames that are rotten, warped or broken
- Leaks from above rather than through a joint
If in doubt, ring 01277 525 020 or email a schedule or drawings and we will say what we think.
Surfaces we seal
- Communal entrances and stairwells
- Window and door perimeters on blocks
- Shopfronts below residential blocks
- External wall and movement joints
- Communal kitchens and washrooms
- Balcony and threshold joints
Maintenance after handover
Cleaning and maintenance staff play a part too. Share these points with them:
- Reduce knocks to communal area joints
- Encourage occupiers to report problems at frames
- Log resealing dates block by block
- Avoid piecemeal callouts where you can
Add mastic joints to your cyclical inspections. Watch for splits, open gaps, hard or chalky surfaces and mastic pulling away and record where they are.
Budgets are easier to plan when sealant is part of planned maintenance. We can quote buildings in priority order so spending is spread.