Hertfordshire · England
Mastic man in Broxbourne
Resealing and window mastic for Broxbourne’s Victorian commuter villas, listed High Road houses and family homes between Hoddesdon and Cheshunt.
- Anti-fungal silicone as standard
- 20+ years in the trade
- Guaranteed for a year
Mastic and sealant work in Broxbourne
Broxbourne is a small place with a big name. It sits between Hoddesdon to the north and Cheshunt to the south, with the River Lea forming the boundary with Essex, and since 1974 it has given its name to the whole borough. The town itself is mostly residential, with a long run of listed buildings along the High Road and Victorian streets that grew up once the railway arrived in 1840.
Mr Mastic covers Broxbourne from our base in Crawley. We reseal baths, showers, basins and kitchens, cut out and renew mastic around bay windows and doors, and treat mould along tired joints. Our silicone removal step is the part most people never see, but taking the old bead out completely is what makes the new one last.
Churchfields villas, St Catherine’s Road and the High Road
Much of the older town lies in the Broxbourne Conservation Area, designated in 1977 and running from Spitalbrook to Mill Lane. It grew in phases: villas and semi-detached houses on Churchfields from the 1840s, then houses on St Catherine’s Road in the 1880s and 1890s for people commuting by the new railway, five of them by the architect Reginald Blomfield. The High Road holds late seventeenth-century houses, early nineteenth-century terraces and almshouses from 1728, with timber framing, red brick and roughcast among the materials.
The twentieth-century houses around them have imitation half-timbering, gables and plenty of oriel and bay windows. A bay can have half a dozen frame joints plus a sill and a roof junction, and when the mastic fails at any one of them, rain finds its way in. We cut out every failed joint, use backing rod where gaps are deep and finish with a flexible, weatherproof sealant in a colour to suit the frame.
Inside, bathrooms in older villas are often in rooms with solid walls and little ventilation, so black mould is a common complaint. Our anti-mould resealing treats the joint before a fungicidal silicone goes on.

Listed fronts, bay windows and mixed materials
On listed and conservation-area buildings, the joint between a frame and old brick or roughcast is part of the frontage. We keep beads slim and neat, choose paintable sealant where the frame will be painted over, and suggest checking with Broxbourne Borough Council before changing anything visible on a listed building.
Where mock half-timbering meets render, the two materials move at different rates and the joint between them cracks. The same happens where an extension butts against an older wall. Sealing those joints properly keeps rain out of the timber, which is far easier than repairing rot later. Many of the semi-detached houses on Churchfields and the later suburban homes have had extensions and conservatories added, and the joint where new meets old is one we check on every visit.
Schools, care homes and local landlords
The Broxbourne School is the town’s secondary school, and its washrooms and changing areas are best resealed in the holidays. The Hertfordshire Golf and Country Club, based in a sixteenth-century house, and the shops and restaurants in neighbouring Hoddesdon all have kitchens and toilets that need regular care. Care homes in the area need hygienic sealant round baths, showers and basins, and our healthcare sealant service explains the products we use.
We also reseal for landlords and letting agents between tenancies, and can look at several homes on one visit. Where a tenant has reported mould or a leak, we’ll tell you plainly whether resealing will solve it or whether something else needs looking at first.
From first call to finished joint
- Call or email. Tell us what needs doing, where it is and anything about access. Photos by email help.
- Agree the price. You get a clear quote up front, and we book a date that suits you.
- Strip back the old joint. Every bit of old sealant is removed and the joint is cleaned, treated for mould and dried.
- Lay the new bead. We apply the right product for each joint and tool it to a clean, even line.
- Cure and guarantee. We tell you when it can be used, and every job has our one-year guarantee.
Jobs we take on in Broxbourne
- Bathroom & kitchen resealing: Every joint in the bathroom and kitchen, from the bath edge to the worktop, stripped back and resealed with anti-fungal silicone.
- Window & door mastic: Hardened, gappy mastic around frames, sills and French or patio doors cut out and renewed to keep draughts and rain out.
- Commercial & hotel sealant: Guest bathrooms, staff washrooms and kitchens in commercial buildings resealed in a planned order that keeps the site running.
- Remedial sealant & repairs: Leaks and lifting beads from earlier sealant jobs put right, starting with finding out why they failed.
- Fire-rated sealant: Fire-rated sealant for service penetrations and frame gaps where it has been specified, applied to the tested details.
- External & façade joints: Brickwork movement joints, render and cladding joints resealed with backing rod and flexible exterior sealant.
- New-build mastic & snagging: New-build bathrooms, kitchens and frames resealed where the original sealant has cracked as the house settles.
- Floor & skirting joints: Skirting-to-floor gaps, tiled floor movement joints and concrete floor joints sealed with the right product.
- Regrouting: Shower and splashback grout replaced where it has cracked or stained, with silicone in the movement joints.
- Glazing & conservatory sealant: Glass-to-frame joints on conservatories, rooflights and shower screens cut out and resealed.
- Gutter, fascia & soffit sealing: Dripping gutter joints and end caps, and gaps at fascias and soffits, sealed with weatherproof exterior sealant.
- Sand mastic for sash & case windows: Traditional sand mastic for period windows and doors where a modern sealant would look out of place.
Choosing a mastic man in Broxbourne
Broxbourne’s older homes and listed fronts call for neat, careful work rather than a quick smear of silicone. That’s what Mr Mastic offers, with 20+ years in the trade, full insurance and ARBOMaster approved applicator status, using Arbo and Everbuild sealants. We’ve completed over 2,847 projects and earned a 4.9-star Google rating from 180+ five-star reviews. You’ll have a clear quote before we start, and a one-year guarantee on the finished job.
Landmarks near Broxbourne
The nearest station to the town centre is Broxbourne station. Places most people will know nearby are Lowewood Museum (0.5 miles north-east) and Barrowfield (3.7 miles north). Around the centre, our work takes us to homes, rentals and businesses close to Sheredes Primary School, Sheredes School, Church of St Augustine and The Golden Lion Inn. Nearby green spaces include Danemead and Cheshunt Lake.
What customers say
Rated 4.9 on Google from 180+ five-star reviews. Read the reviews on Google.
“New build in Forge Wood — shower seal had failed after 16 months. Mr Mastic came out quickly, removed everything and did it properly. Perfect finish and no more leaks.”
“Harper Drive in Maidenbower — kitchen worktop had been leaking behind for a while. Came out the next day, sorted it properly. Really tidy job.”
“Called for a bathroom reseal and the mastic man showed up on time with all the right equipment. Brilliant attention to detail. The sealant looks perfect and they kept everything tidy.”
Neighbourhoods we cover in Broxbourne
Choose your part of town for local details, or call 07833 053749 or email us and tell us your postcode.
Other towns around Broxbourne
Questions from Broxbourne
Do you cover all of Broxbourne?
Yes. We cover the whole town, including Churchfields, St Catherine’s Road and the High Road, plus Wormley, Turnford, Hoddesdon and Cheshunt.
Rain is getting in around my bay window. Can mastic fix it?
Often, yes. We check every frame joint, the sill and the roof junction, cut out any failed mastic and reseal with a flexible, weatherproof product.
My house is in the conservation area. Will the sealant look obvious?
It shouldn’t. We keep the bead slim, match the colour and use paintable sealant where the frame will be painted.
Can you reseal a basin and vanity unit?
Yes. Our basin and sink resealing covers basins, vanity units and splashbacks.
Black mould keeps coming back on my bath sealant. Why?
Usually because mould was left behind the old bead, or the room lacks ventilation. We remove everything, treat the joint and use a fungicidal silicone.
Do you work in care homes?
Yes. We use hygienic, anti-bacterial products and can work around residents’ routines.
Can you reseal a bathroom between tenants?
Yes. Between lets is the ideal time, as the new sealant can cure fully before anyone moves in.
Is the work guaranteed?
Yes. Every job has our one-year guarantee.
