Medway · England
New Build Mastic in Fenn Street
Professional new build mastic in and around Fenn Street, with every bit of old sealant taken out first and a 12-month guarantee.
- Sealant that never bonded to the surface
- Untidy sealant flagged on a snagging list
- Cracked caulk along new skirting
When something else is needed
We’d rather tell you now than do work that will not last, so these are the limits:
- Plumbing faults behind the sealant
- Deciding who is responsible under a builder’s warranty
- Movement caused by a poorly fitted tray or bath
If you’re not sure, just call 0345 464 0079 or email us and we will give you a straight answer.
Joints and surfaces we work on
- Bathrooms & en suites
- Windows & doors
- Kitchens
- Plot handovers
- Show homes
- Skirting & floors
New build mastic for homes and businesses in Fenn Street
A new build should have a neat, sound bead at every joint. Smeared, patchy or cracked sealant is worth sorting early, before water reaches anything behind it. We are often asked to deal with worktop and upstand sealant coming away and second-fix sealing on new plots, on kitchens, plot handovers and show homes.
For a small place like Fenn Street, the journey and access are planned in advance, and once on site, the job is the same as anywhere.
Whatever the size of the job, it’s backed by our one-year guarantee in Fenn Street and across Medway.
- Where
- Fenn Street (ME3)
- Wider area
- Medway
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Landlords, agents and businesses in Fenn Street
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
For anyone letting property in or around Fenn Street, several properties can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.
Keeping the joints in good condition
After the cure time, these simple habits help:
- Report sealant problems to your builder during the snagging period
- Resist patching a failed seal with a tube from the DIY shop
- Keep water off fresh sealant until it has cured
- Ventilate bathrooms well, especially in the first year
Keep the bathroom ventilated, especially in the first year. Run the fan or open a window after bathing so moisture doesn’t sit on the sealant.
Mould takes hold quickly in sealant that has gaps or lifted edges. Dealing with it before it goes black saves a harder job later.
How we quote for new build mastic
Call for a quick quote. What matters most is:
- Working hours on commercial sites
- Any mould that needs treating
- How easy the joints are to reach
- Which sealant suits the joint
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.
What we need to know
Photos by email are helpful but not essential. Try to tell us:
- What’s wrong with the joints now
- Any previous sealing or DIY work
- Photos by email, if that is easy
- Where the job is, and your postcode
To get a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You will have a clear quote before any work starts.
Can I do it myself?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Your questions about new build mastic in Fenn Street
I let a flat near Gillingham (Kent) station. Can you help?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can be quoted together. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Do you cover smaller places like Fenn Street?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Should I wait before resealing?
That depends on the joint. Failed seals in wet areas need doing now, while small cosmetic gaps can wait a while.
Are you fully insured?
Yes, we are fully insured for domestic and commercial work.
Who should fix failed sealant in a new build?
While the snagging or warranty period runs, the builder should be your first contact. If it is not sorted, or keeps failing, get in touch with us.
Do you work for developers?
Yes. We carry out plot mastic and second-fix sealing for builders and developers. Send us the plot schedule and we will quote.
Is there any odour?
That depends on the sealant. Some smell for a while, some hardly at all.
How it works
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours for most snagging lists, longer for a run of plots. For a village or hamlet like Fenn Street, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We go through the snagging list or plot schedule and agree the joints to do.
- We cut out every bit of the failed or messy sealant.
- Each joint is cleaned of dust and grit, then primed if required.
- A sealant chosen for each area goes in and is tooled smooth.
- Finally, each room is checked and you are given the cure time.
How to prepare
- Let us know about stairs, lifts or work at height
- Let us know about parking restrictions
- Move anything stored near the joints
Get a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.
Read more
Different surfaces, different methods
Windows and doors
Draughts around new frames are often a sealant gap. We check and reseal the frame edges.
Show homes
Bathrooms, kitchens and frames in show homes are sealed or resealed to a neat finish to a tidy standard. Tell us when the home is open so we can plan around it.
New build mastic around Fenn Street
Fenn Street is close to the coast. New homes near the sea put their outside mastic to work from day one, so any gaps are best picked up early. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Around Fenn Street, as everywhere, new build mastic is only as good as the preparation behind it. If you’ve bought a new home near Gillingham (Kent) station, the sealant around baths, showers and frames is worth checking in the first year or two.
Fenn Street is about 5 miles north of Gillingham, in Medway. We carry out new build mastic for homeowners, landlords and businesses in Fenn Street and nearby. 68 places in Medway are on our list. We also work in Chelmsford, around 21 miles away.
All of ME3 is within our area for new build mastic, from the main roads to the quietest streets. Local streets include Winterberry Avenue, Sharnal Street and Parbrook Road. Close by, we work in 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). Larger places within reach include 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
We work in homes and buildings around 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. Other landmarks nearby include Medway Maritime Hospital (4.9 miles south) and Upnor Castle (3.7 miles south-west). For a walk, there’s Bishop Saltings.