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Smart Alitherm range of profiles provides effective solutions for both residential and light commercial applications. It allows for the creation of traditional casement windows that capture the elegance of timber window look, as well as modern aluminium window designs tailored for contemporary homes and offices.

Smart Alitherm 300 Window profile is built with Smart’s innovative polyamide thermal break technology, which effectively separates the cold air from the outside and the warm air inside. This advancement significantly reduces thermal transmittance and improves the overall U-value of the product, ensuring compliance with the strict standards outlined in Document L 2010.

Available in a wide spectrum of standard and non-standard colours, Smart Alitherm 300 include metallic finishes, dual colours, Smart System’s Sensations textured options, and Alchemy anodized effects, allowing for customization to fit any aesthetic.

The British Standard Kitemarked system KM 81580, KM 81543 features an enhanced polyamide thermal break that further optimizes the U-value of the profiles. When combined with the right double or triple-glazed unit, Alitherm 300 can achieve a Window Energy ‘A’ Rating.

This system accommodates both internally and externally beaded Aluminium windows, whether they open from the sides or the top. The profiles can be designed with ovolo, chamfered, or square edges to match varied styles.

Frame options are versatile, offering both standard and slim-line stays, with a selection between multi-point or cockspur locking handles, ensuring security and functionality.

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[info_list style=”circle with_bg” icon_color=”#71bb57″ font_size_icon=”14″ icon_border_style=”solid” icon_border_size=”1″ border_color=”#71bb57″ eg_br_style=”solid” eg_br_width=”1″ connector_color=”#eaeaec”][info_list_item list_title=”Fast Service” list_icon=”Defaults-check” title_font_style=”font-weight:bold;” title_font_size=”desktop:25px;” title_font_line_height=”desktop:30px;” title_font_color=”#072b89″ desc_font_size=”desktop:16px;” desc_font_line_height=”desktop:24px;” desc_font_color=”#666666″]Your wait end here! We offer manufacturing, delivery, and installation on time.[/info_list_item][info_list_item list_title=”Affordable Price” list_icon=”Defaults-check” title_font_style=”font-weight:bold;” title_font_size=”desktop:25px;” title_font_line_height=”desktop:30px;” title_font_color=”#072b89″ desc_font_size=”desktop:16px;” desc_font_line_height=”desktop:24px;” desc_font_color=”#666666″]Being as windows fabricator allow us to offer affordable pricing[/info_list_item][/info_list]
[info_list style=”circle with_bg” icon_color=”#71bb57″ font_size_icon=”14″ icon_border_style=”solid” icon_border_size=”1″ border_color=”#71bb57″ eg_br_style=”solid” eg_br_width=”1″ connector_color=”#eaeaec”][info_list_item list_title=”Leading Profiles” list_icon=”Defaults-check” title_font_style=”font-weight:bold;” title_font_size=”desktop:25px;” title_font_line_height=”desktop:30px;” title_font_color=”#072b89″ desc_font_size=”desktop:16px;” desc_font_line_height=”desktop:24px;” desc_font_color=”#666666″]We source high-quality profile for our customers from SMART System, Cortizo, schüco etc.[/info_list_item][info_list_item list_title=”Expert Advisors” list_icon=”Defaults-check” title_font_style=”font-weight:bold;” title_font_size=”desktop:25px;” title_font_line_height=”desktop:30px;” title_font_color=”#072b89″ desc_font_size=”desktop:16px;” desc_font_line_height=”desktop:24px;” desc_font_color=”#666666″]We take pride in our expertise to provide the best solutions.[/info_list_item][/info_list]
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[bsf-info-box icon_type=”custom” icon_img=”id^362|url^https://www.durajoin.com/wp-content/uploads/2020/10/Offer.png|caption^Cheap|alt^Cheap Price|title^Cheap Price|description^Cheap Windows and Doors” img_width=”48″ title=”Affordable” heading_tag=”p” pos=”top” title_font_style=”font-weight:bold;” css_info_box=”.vc_custom_1737235858796{margin-bottom: 0px !important;}” title_font_size=”desktop:30px;”][/bsf-info-box]
[bsf-info-box icon_type=”custom” icon_img=”id^364|url^https://www.durajoin.com/wp-content/uploads/2020/10/Guarantee.png|caption^10 year guarantee|alt^10 year guarantee|title^10 year guarantee|description^10 year guarantee on windows and doors” img_width=”48″ title=”10-year Guarantee” heading_tag=”p” pos=”top” title_font_style=”font-weight:bold;” css_info_box=”.vc_custom_1737235967158{margin-bottom: 0px !important;}” title_font_size=”desktop:30px;”][/bsf-info-box]
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[bsf-info-box icon_type=”custom” icon_img=”id^366|url^https://www.durajoin.com/wp-content/uploads/2020/10/Trade.png|caption^Trade Supply Only Windows and Doors |alt^Trade Windows and Doors Supply Only|title^Trade Supply Windows and Doors|description^Windows and Doors Trade Supply only” img_width=”48″ title=”Trade Supply” heading_tag=”p” pos=”top” title_font_style=”font-weight:bold;” css_info_box=”.vc_custom_1737236442201{margin-bottom: 0px !important;}” title_font_size=”desktop:30px;”][/bsf-info-box]
[ultimate_heading main_heading=”Safety” heading_tag=”p” main_heading_color=”#183a90″ sub_heading_color=”#000000″ main_heading_style=”font-weight:bold;” main_heading_font_size=”desktop:24px;” main_heading_line_height=”desktop:36px;” main_heading_margin=”margin-bottom:10px;” sub_heading_font_size=”desktop:16px;” sub_heading_line_height=”desktop:26px;” sub_heading_margin=”margin-top:5px;” el_class=”safety-cls”]We are not only diligent in our work, but we also pay attention to our team and customers. We follow a safe and secure manufacturing process till the post-instalment support and maintenance. We provide FENSA or CERTASS certification on request.[/ultimate_heading]
[ultimate_heading main_heading=”Quality” heading_tag=”p” main_heading_color=”#183a90″ sub_heading_color=”#000000″ main_heading_style=”font-weight:bold;” main_heading_font_size=”desktop:24px;” main_heading_line_height=”desktop:36px;” main_heading_margin=”margin-bottom:10px;” sub_heading_font_size=”desktop:16px;” sub_heading_line_height=”desktop:26px;” sub_heading_margin=”margin-top:5px;” el_class=”safety-cls”]Durajoin customer success is defined by our product’s quality. We follow the best standards and raise the bar to provide you with the desired result.[/ultimate_heading]
[ultimate_heading main_heading=”Integrity” heading_tag=”p” main_heading_color=”#183a90″ sub_heading_color=”#000000″ main_heading_style=”font-weight:bold;” main_heading_font_size=”desktop:24px;” main_heading_line_height=”desktop:36px;” main_heading_margin=”margin-bottom:10px;” sub_heading_font_size=”desktop:16px;” sub_heading_line_height=”desktop:26px;” sub_heading_margin=”margin-top:5px;” el_class=”safety-cls”]Durajoin is exemplary when it comes to integrity. We maintain high standards of confidentiality to maintain the best possible relationship with our customers.[/ultimate_heading]
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[info_list font_size_icon=”0″ eg_br_width=”1″ connector_color=”#edd225″][info_list_item list_title=”West London” title_font_color=”#ffffff” desc_font_color=”#ffffff” desc_font_size=”desktop:16px;” desc_font_line_height=”desktop:20px;”]
  • Ealing
  • Hammersmith and Fulham
  • Harrow
  • Hillingdon
  • Hounslow
  • Kensington and Chelsea
  • Richmond upon Thames
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  • Barking and Dagenham
  • City of London
  • Hackney
  • Havering
  • Newham
  • Redbridge
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  • Waltham Forest
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[info_list font_size_icon=”0″ eg_br_width=”1″][info_list_item list_title=”South London” title_font_color=”#ffffff” desc_font_color=”#ffffff” desc_font_size=”desktop:16px;” desc_font_line_height=”desktop:20px;”]
  • Bexley
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  • Croydon
  • Greenwich
  • Kingston upon Thames
  • Lambeth
  • Lewisham
  • Merton
  • Southwark
  • Sutton
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[info_list font_size_icon=”0″ eg_br_width=”1″][info_list_item list_title=”East London” title_font_color=”#ffffff” desc_font_color=”#ffffff” desc_font_size=”desktop:16px;” desc_font_line_height=”desktop:20px;”]
  • Barnet
  • Brent
  • Camden
  • Enfield
  • Haringey
  • Islington
[/info_list_item][/info_list]
[ultimate_heading main_heading=”Postcode We Serve” heading_tag=”p” main_heading_color=”#ffffff” main_heading_style=”font-weight:bold;” main_heading_font_size=”desktop:40px;” main_heading_line_height=”desktop:45px;” main_heading_margin=”margin-bottom:50px;”]BR1, BR2, BR3, BR4, BR5, BR6 , BR7, CR0, CR1, CR2, CR4, CR5, CR8, DA1, DA14 ,DA15, DA16 ,DA17, DA5, DA6, DA8, E1, E10, E11, E12, E13, E14, E15, E16, E17, E18, E2, E3, E4, E5, E6, E7, E8, E9, EC1, EC2, EC3, EC3R, EC4, EN1, EN2, EN3, EN4, EN5, HA0, HA1, HA2, HA3, HA4, HA5, HA6, HA7, HA8, HA9, IG1, IG11, IG2, IG3, IG6, IG8, KT1, KT2, KT3, KT4, KT6, KT9, N1, N10, N11, N12, N13, N14, N15, N16, N17, N18, N19, N2, N20, N21, N22, N3, N4, N5, N6, N7, N8, N9, NW1, NW10, NW11, NW2, NW3, NW4, NW5, NW6, NW7, NW8, NW9, RM1, RM10, RM12, RM13, RM14, RM2, RM3, RM4, RM5, RM6, RM7, RM8, RM9, SE1, SE10, SE11, SE12, SE13, SE14, SE15, SE16, SE17, SE18, SE19, SE2, SE20, SE21, SE22, SE23, SE24, SE25, SE26, SE27, SE28, SE3, SE4, SE5, SE6, SE7, SE8, SE9, SM2, SM3, SM4, SM5, SM6, SM7, SW1, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW1A, SW2, SW20, SW3, SW4, SW5, SW6, SW7, SW8, SW9, TN14 ,TN16 , TW1, TW10 ,TW11, TW12, TW13,TW14, TW3, TW4, TW5, TW7, TW8, TW9, UB1, UB10, UB2, UB3, UB4, UB5, UB6, UB7, UB8, UB9, W1, W10, W11, W12, W13, W14, W1M, W2, W3, W4,W5, W6, W7, W8, W9, WC1, WC2[/ultimate_heading]
[ultimate_heading main_heading=”Our Other Products” main_heading_color=”#0d1d4e” main_heading_style=”font-weight:bold;” main_heading_font_size=”desktop:26px;” main_heading_line_height=”desktop:36px;” main_heading_margin=”margin-bottom:10px;”][/ultimate_heading][ultimate_spacer height=”20″]
[ultimate_heading main_heading=”We work with leading companies” main_heading_color=”#1276a0″ sub_heading_color=”#0d1d4e” main_heading_style=”font-weight:bold;” main_heading_font_size=”desktop:18px;” main_heading_line_height=”desktop:25px;” sub_heading_font_size=”desktop:48px;” sub_heading_line_height=”desktop:60px;” sub_heading_margin=”margin-bottom:60px;” main_heading_margin=”margin-bottom:10px;”]Quality is Our Passion[/ultimate_heading]
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