Reservoir Construction

Welwyn Garden City, UK


01707 538068 / 07871574341

Reservoir Construction

We specialise in Loft conversion and Extension. Get in touch today for a free quote!

Loft Conversions & General Builders

Professional & Reliable

Making Your Vision Become A Reality

Our Story

Looking for a loft conversion in your London, Hertfordshire, Bedfordshire and Essex.? Reservoir Construction are the company you can rely on to get the job done efficiently and at the highest quality. We also specialise in bespoke  Extensions, Garden Rooms, and general building work. Our team of talented experts share over 20 years of experience and knowledge to provide you with the best quality service in these 4 areas. We take pride in our work – our builders are highly skilled and aim for 100% satisfaction by our clients. Contact us to discuss your options and get a free quote!

  • L Shaped Loft Conversions

    This loft conversion gives you the option to create two additional bedrooms and a shared bathroom. These are practical for houses with a rear addition. The primary advantage of this type of loft conversion is the large amount of space it creates.

  • Hip-to-gable loft conversion

    Gives you the option to create a bedroom, bathroom, and walk-in wardrobe. You can also have two bedrooms and a bathroom, or one large master room with an on-suite bathroom depending on the size of the loft conversion.

    Replacing a sloping roof with a part horizontal one creates ample headroom, making the entire loft space habitable. Unlocking more living space also adds significant value to your home.

  • Rear Dormer Loft Conversion

    In a mid-terrace house, you can create one master bedroom and an on-suite bathroom. In most cases you are required to move the current bedroom wall to the box bedroom on the first floor to allow for a new staircase depending on the size of the property.

    This is one of the best options if you want to add more head and floor space to your loft.

  • Garden Room  A garden room extension is a stand-alone garden building that is completely detached from your home. Built to be fully insulated to the same high standard as a room in your house, an insulated garden room is designed to be used all year round.​
  • Extensions A home extension allows you to create the space you need while being able to stay in the area you love. With the inspiration and labour skills of our professionals, we can help transform your home. Home extensions can help to increase the value of your property.

Get to Know Us

Licensed Professionals

Reservoir Construction is a family-run business with over 20 years of experience in the trade. We aim to exceed the expectations of our clients by providing them with a professional and proficient service. Reservoir is committed to our clients’ unique project needs and strives to create a strong, positive working relationship. 

Our office is based in Hertfordshire; our talented team of skilled experts travels across the whole of London, Hertfordshire, Essex, and Bedfordshire, to provide our clients with the highest quality service among our competitors. 

Why choose us

We are known for our extremely rapid response rate, along with our efficient and organized attitude toward each client project. We are fully insured while providing a 10-year guarantee, we understand that every job is different and unique to each independent client, so we insist on forming a trusting relationship with our clients to build an excellent line of communication and achieve the ultimate results for the utmost customer satisfaction!

Visit our website today by clicking HERE

You can  find us in Welwyn Garden City, Stevenage, and the St Albans areas of

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Posted in Builders and Loft Conversion

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