Mastic man in Newhaven

Your local mastic man for Newhaven

Newhaven sits where the River Ouse cuts through the South Downs to reach the sea, and its homes face weather from every direction: wind off the Channel, damp air up the valley and salt on the harbour side. The main town lies on the west bank, with Denton and Mount Pleasant climbing the slopes of the Downs to the east. Mr Mastic covers all of it from our base in Crawley, resealing baths, showers, basins and worktops and renewing tired mastic around windows and doors.

A good seal starts with taking the bad one away. We cut and scrape out every trace of the old bead, treat any mould behind it, dry the joint and lay a fresh line of Arbo or Everbuild sealant chosen for that spot. Running new silicone over old might look tidy for a week, but it never bonds, so we simply don’t do it. When a shower keeps going black around the tray, our anti-mould resealing service is usually the place to start.

Railway-era streets, hillside estates and harbourside new builds

Newhaven was a small place until the railway line to Lewes opened in 1847. Harbour improvements followed between 1850 and 1878, and the harbour was recognised as a port in 1882, so much of the older housing on the west bank dates from the town’s growth as a working port. In older terraces like these, bathrooms are often later additions squeezed into small rooms, and baths sitting on timber floors flex enough to tear a stiff, ageing bead. We fill the bath before sealing so the joint is laid with the tub at its heaviest.

Across the river, Denton and Mount Pleasant sit on the hillside, and South Heighton next door grew quickly in the 1890s after a cement works opened nearby. There, Denton House was converted into flats in 1998, with new houses built around it. Homes on high ground take the full force of the wind, and the mastic around frames and patio doors dries and cracks sooner than it would in a sheltered street.

The town is also growing. Recent developments include West Quay, Harbour Heights, August Fields and Safford Park on the old Parker Pen site. New homes settle in their first couple of years, and developer sealant around showers, baths and kitchen worktops often opens up as they do. Our new build mastic page explains what we look at on a snagging visit.

What we do in Newhaven

• Bathroom & kitchen resealing: Baths, showers, basins, wet rooms, worktops and sinks: old sealant cut out, mould treated and a new bead of anti-fungal silicone laid.
• Window & door mastic: Cracked or shrunken mastic around window and door frames, sills and patio doors replaced with a weatherproof sealant.
• Commercial & hotel sealant: Commercial washrooms, kitchens and wet areas resealed floor by floor, so only a few rooms are out of use at once.
• Remedial sealant & repairs: Failed, botched or over-sealed joints stripped out, the cause found and the joint resealed properly.
• Fire-rated sealant: Fire-rated and intumescent sealant around gaps, frames and service penetrations, to the product’s tested details.
• External & façade joints: Outside movement joints given new backing rod and a flexible, weatherproof sealant in a colour to match the wall.
• New-build mastic & snagging: Failed builder sealant in new homes put right, and plot mastic for developers.
• Floor & skirting joints: Floor and skirting joints in homes, shops and warehouses sealed neatly and to the right depth.
• Regrouting: Crumbling grout in showers and wet areas raked out and refilled, so water stays out of the wall behind.
• Glazing & conservatory sealant: Glazing joints on conservatories, roof lanterns and screens renewed with a sealant suited to glass and frames.
• Gutter, fascia & soffit sealing: Gutter unions, outlets and fascia joints that leak in heavy rain cleaned and resealed.
• Sand mastic for sash & case windows: Traditional sand mastic for period windows and doors where a modern sealant would look out of place.

Why choose Mr Mastic in Newhaven

We keep things simple. You tell us what’s failing, we give you a clear quote, and the job is done properly with Arbo and Everbuild sealants by an ARBOMaster approved applicator. Mr Mastic has more than 20 years in the trade, is fully insured and has completed over 2,847 projects, earning a 4.9-star Google rating from 180+ five-star reviews. Newhaven is an easy drive down from Crawley, and every job we finish there carries our one-year guarantee.

Around Newhaven

The nearest station to the town centre is Newhaven Town station. Well-known places nearby include Newhaven Museum (0.5 miles north-east). Typical jobs near the centre are in homes and businesses around Harbour Primary and Nursery School, UTC@Harbourside, Church of St Michael and All Angels and The Ship Hotel. Green spaces within reach include Itford Hill.