In START Construction, we are specialists in the installation and maintenance of septic tanks on the Costa Blanca, Alicante and the Marina Alta.
We offer modern solutions, legal and sustainable for the treatment of wastewater, with the latest equipment and a professional service that meets all the current regulations.
Our Septic System Solutions
In function of the needs of each client and the local regulations, we install different purification systems:
septic tanks, aerobic → optimize the process of purification by means of oxygen.
Systems of complete oxidation → high efficiency in the removal of pollutants.
Solutions for modular and compact → adapted to second homes, villas, and rural projects.
All machines have CE marking and are designed to offer durability, safety and low maintenance.
Why Choose START for Your Septic Tank Installation
With START Construcciones, you get full service and quality.
- Septic Tanks with the CE mark of approval
- Permitting & Legal Compliance
- High-quality materials with european certification.
- Quick and professional installation by qualified professionals
- Advice on engineering projects and technical reports.
- Local service in Jávea, Moraira, Calpe, Denia, Jalon, Benissa, Llíber and surroundings.

Regulation and legalization of septic tanks in Alicante
The proper treatment of wastewater is required to meet the standards of the Hydrographic Confederation of Júcar and other regulatory entities.
In START we will help you with:
- Processing and management of licenses.
- Drafting of project, engineering and technical reporting.
- Certification and documentation legalized for each installation.
In this way you can be sure to have a system that is completely legal and adapted to your dwelling.
Our Installation Process
1
Study of the location and Terrain
2
Design and Engineering
3
Professional Installation
4
Final Delivery and Legal Documentation
Areas We Serve
We do installations of septic systems throughout the Costa Blanca and particularly in:
Javea
Moraira
Denia
Marker
Lliber
Alcalali
Benissa
Benitachell
Pedreguer
Gata De Gorgos
Altea
The Xara
Orba
Frequently asked questions about septic tanks
How much does it cost to install a septic tank in the Costa Blanca?
What permissions do I need?
How long does a septic tank last?
A well-installed and maintained Septic Tank can last more than 25 years, offering a safe operation and efficient.
Your Septic Tank Installed by Trusted Experts On the Costa Blanca
Book Your Septic Tank Consultation Now – We Handle Everything, Start to Finish