'Alternative to Timber' and Aluminium windows & doors
Timber Windows


Blackthorn Timber Windows supply and install timber windows within the Northumberland area, and we offer the most comprehensive range of wooden windows in quality softwood or hardwood.

Quality Timber Windows with a 30 Year Guarantee
Timber Windows

We provide a wealth of information on our website about timber windows, but we'd be happy to visit your home or arrange a call-back.

We have a no pressure approach to meeting our customers and we always send written quotations following a visit. We understand that these projects sometimes take a while to get off the ground and we know that our customers don't want to be hassled so we simply send the quotation and wait. Some customers come back within a week, others take a month or even a year and that's fine.

Below you'll find a selection of work we have undertaken in the Northumberland area, supplying and fitting timber windows.

Replacement Wooden Stormproof Windows

These timber Stormproof windows replaced old PVCu and made the world of difference - the colour sits beautifully against the sandstone.

Replacement Wooden Windows

Due to the coastal location these windows are made from FSC certified Accoya© and fully factory painted in a colour RAL 10105 (Light Ivory).

Replacement Wooden Sash Windows in Northumberland

These replacement sash windows provide huge thermal benefits compared to the originals without compromising on the style and details. With options for traditional box sash windows and a modern slimline option - along with a slide and tilt variant - we offer the whole package of replacement wooden sash windows.

Replacement Wooden Sash Windows

Cottage style Stormproof Casement windows in Northumberland

These beautiful cottage style casement windows - in a Stormproof profile - look fabulous against the old sandstone. The gentle paint colour - matched to Farrow and Ball Lime White - compliments the stone and mortar.

Cottage style stormproof casement windows

Made from engineered timber with high-performance glazing and high security locks these really do combine modern requirements with traditional aesthetics.

Wooden Flush Casement Windows in Northumberland

This replacement timber bay window - including a new flat roof with Sarnafil covering - brought this lovely holiday cottage in rural Northumberland back to life and fit for many guests over the coming years.

Wooden Flush Casement Windows

Stormproof Casement Replacement Windows in Northumberland

These replacement timber windows are made from FSC certified Accoya for long term performance along the harsh Northumbrian coast.

Replacement Timber Windows

The high-performance Stormproof casement is designed to withstand extreme weather conditions and the timber comes with a 50-year guarantee.

These were factory painted in Light Ivory to compliment the stone of the building.

Stormproof Casement Replacement Windows

Replacement Timber Windows - Sliding Sash Windows

A great example of replacement timber windows in a Listed Building in Northumberland. These beautiful sliding sash windows are hung on weights and pulleys and glazed with slim heritage style double glazing using a traditional putty method with solid through-bars.

Replacement Timber Windows New Timber Windows

A River View from a New Bay Window

This is a good example of why we install windows and doors and why we don't take photographs for a living!

Just out of shot on the right is a delightful stretch of the River Wansbeck on which all manner of wildlife lives, including kingfishers and otters. Having installed Sliding Sash windows to the old part of the property our customer invited us back for Phase 2 at the rear. This included creating a brand new projecting square bay window giving views up and down the river.

Rural Re-development in Northumberland

Sometimes the age and character of a property demands a window style with timber glazing bars dividing the glass into multiple panes but when the windows are also small and there is a fantastic view, glazing bars might get in the way.

This shows an attractive compromise between the two. The glazing bar detain on these Flush Casement windows adds detail and interest whilst not crowding the glass area or obstructing the view.

New Timber Windows In Northumberland

A tranquil resting place. Early December sunlight shines softly onto our newly-installed windows in Northumberland, between Morpeth and Ponteland. These are flush casement windows designed to recall the proportions of sash windows but with the functionality of top-hung outward-opening windows. Upstairs windows were identical appearance but hung on reversible hinges allowing the windows to be cleaned from inside. Reversible casement windows also provide an excellent means of egress should the need to climb through the window ever arise.

Colour Timber Window

The windows were made with a wide horizontal glazing bar to represent a sash window meeting rail and a narrow vertical bar. The colour is Normandy Gray which blends superbly with the cream render of the house. December light is often very blue which is why the true colour is washed out from the rear window photograph.

Luxury Windows

Traditional Timber Sash Windows in Northumberland

Late afternoon sun gives a deceptively warm glow to the weathered sandstone of this cottage in rural Northumberland. We installed 3 timber sash windows and a single top-hung timber casement window complete with narrow glazing bars at this quiet location north of Morpeth.

Sash Window In Stone Cottage

The traditional appearance of the property was maintained by replicating the timber width around the window and keeping the glazing bars to the same overall size as before.

Double Glazed Timber Sash Windows in Northumberland

With views down the Tyne Valley, this beautiful cottage near Haydon Bridge, Northumberland now has the added benefit of beautiful timber sash windows and French doors.

Cottage-style timber windows

Blackthorn Timber Windows has carried out two installations to this property - initially the timber sash windows on the front elevation were installed and then another sash window and a pair of timber French doors to the rear.

The client has already noted the benefits of the excellent weather-protection and draught-proofing on the timber sash windows, and despite their exposed location they have been kept warm during some very stormy weather.

Blackthorn Timber Windows supply and install quality timber windows throughout the North East of England and beyond.

Click here for more information about timber sash windows, or timber French doors.

Large Traditional Sliding Sash Timber Windows in Northumberland

This was one of our favourite installations in recent years. A spacious house in the country alongside a tumbling river and surrounded by woodland. It was beautifully sunny on this day but on our first visit, in the depths of winter, the house was so cold that you could see your breath in some rooms! The multiple large sliding sash windows were just leaking heat on every elevation.

Our job was to replace the windows with energy efficient double-glazed timber sash windows without changing the look of the house at all. That meant, tucking the windows behind the stonework by the same amount as before, finishing the insides with colour-matched moulded timber trims and pointing the outside with a lime-rich mortar to blend in with the rest of the stonework.

We installed our Traditional Sash window throughout, painted in Gardenia and with quality brass fasteners and hook lifts. The results speak for themselves.

Large sash windows for large house

We are enormously proud of the double glazed timber windows and doors that we provide, as well as the installation service we offer. In fact, we believe Blackthorn Timber Windows (and doors) are the best available in the market.

Click here to see 10 reasons why you should choose Blackthorn Timber Windows.

With products supplied by leading UK manufacturers of high-performance timber windows and doors, Blackthorn Timber Windows can offer every possible style of timber window and door. Whether you are improving an old property, renovating a town house, adding an extension or building a brand new property, urban or country, single-storey or high-rise, we have a timber window and door to meet your needs.

All of our timber windows are made-to-measure in high-quality, FSC certified redwood or hardwood timber and backed by impressive performance standards and warranties. Quality is designed into every timber window and door, and controlled every step of the way.

Double Gazed Traditional Timber Sash Windows

When replacing sliding sash windows, no other style of window comes close to doing justice to the property as traditional sliding sash double glazed timber windows.

This installation is at Harehope Hall, near Alnwick, Northumberland and comprised timber sliding sash windows and entrance doors.

Blackthorn Timber Windows supply and install quality timber windows throughout the North of England and The Borders.

Click here for more information about double glazed traditional sliding sash timber windows.

A-Rated timber casement windows in Slaley

These stormproof casement windows were manufactured in engineered redwood timber and finished in a pale cream Gardenia which perfectly matches the stone.

timber casement window in stone house

By fitting a dummy sash to the centre deadlight we were able to keep the window looking balanced with equal sight-lines throughout.

Blackthorn Timber Windows supply and install quality timber windows throughout the North East of England and beyond. These casement windows were installed in a house located in the picturesque village of Slaley, near Hexham in Northumberland.

Click here for more information about stormproof casement timber windows.

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